---
Function {
 argument: None,
 arguments: FunctionArguments {
  arguments: [
   FunctionArgument {
    identifier: "pkgs",
    default: None,
   },
   FunctionArgument {
    identifier: "lib",
    default: None,
   },
   FunctionArgument {
    identifier: "config",
    default: None,
   },
  ],
  ellipsis: true,
 },
 definition: With {
  expression: Variable {
   identifier: "lib",
   position: (3, 6),
  },
  target: LetIn {
   bindings: [
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "cfg",
        position: (6, 3),
       },
      ],
     },
     PropertyAccess {
      expression: Variable {
       identifier: "config",
       position: (6, 9),
      },
      attribute_path: AttributePath {
       attributes: [
        Raw {
         content: "services",
         position: (6, 16),
        },
        Raw {
         content: "jack",
         position: (6, 25),
        },
       ],
      },
      default: None,
     },
    ),
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "pcmPlugin",
        position: (8, 3),
       },
      ],
     },
     BinaryOperation {
      operator: LogicalAnd,
      operands: [
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (8, 15),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "jackd",
           position: (8, 19),
          },
          Raw {
           content: "enable",
           position: (8, 25),
          },
         ],
        },
        default: None,
       },
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (8, 35),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "alsa",
           position: (8, 39),
          },
          Raw {
           content: "enable",
           position: (8, 44),
          },
         ],
        },
        default: None,
       },
      ],
      position: (8, 32),
     },
    ),
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "loopback",
        position: (9, 3),
       },
      ],
     },
     BinaryOperation {
      operator: LogicalAnd,
      operands: [
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (9, 14),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "jackd",
           position: (9, 18),
          },
          Raw {
           content: "enable",
           position: (9, 24),
          },
         ],
        },
        default: None,
       },
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (9, 34),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "loopback",
           position: (9, 38),
          },
          Raw {
           content: "enable",
           position: (9, 47),
          },
         ],
        },
        default: None,
       },
      ],
      position: (9, 31),
     },
    ),
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "enable32BitAlsaPlugins",
        position: (11, 3),
       },
      ],
     },
     BinaryOperation {
      operator: LogicalAnd,
      operands: [
       BinaryOperation {
        operator: LogicalAnd,
        operands: [
         PropertyAccess {
          expression: Variable {
           identifier: "cfg",
           position: (11, 28),
          },
          attribute_path: AttributePath {
           attributes: [
            Raw {
             content: "alsa",
             position: (11, 32),
            },
            Raw {
             content: "support32Bit",
             position: (11, 37),
            },
           ],
          },
          default: None,
         },
         PropertyAccess {
          expression: Variable {
           identifier: "pkgs",
           position: (11, 53),
          },
          attribute_path: AttributePath {
           attributes: [
            Raw {
             content: "stdenv",
             position: (11, 58),
            },
            Raw {
             content: "isx86_64",
             position: (11, 65),
            },
           ],
          },
          default: None,
         },
        ],
        position: (11, 50),
       },
       BinaryOperation {
        operator: NotEqualTo,
        operands: [
         PropertyAccess {
          expression: Variable {
           identifier: "pkgs",
           position: (11, 77),
          },
          attribute_path: AttributePath {
           attributes: [
            Raw {
             content: "pkgsi686Linux",
             position: (11, 82),
            },
            Raw {
             content: "alsa-lib",
             position: (11, 96),
            },
           ],
          },
          default: None,
         },
         Variable {
          identifier: "null",
          position: (11, 108),
         },
        ],
        position: (11, 105),
       },
      ],
      position: (11, 74),
     },
    ),
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "umaskNeeded",
        position: (13, 3),
       },
      ],
     },
     FunctionApplication {
      function: Variable {
       identifier: "versionOlder",
       position: (13, 17),
      },
      arguments: [
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (13, 30),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "jackd",
           position: (13, 34),
          },
          Raw {
           content: "package",
           position: (13, 40),
          },
          Raw {
           content: "version",
           position: (13, 48),
          },
         ],
        },
        default: None,
       },
       String {
        parts: [
         Raw {
          content: "1.9.12",
          position: (13, 57),
         },
        ],
       },
      ],
     },
    ),
    KeyValue(
     AttributePath {
      attributes: [
       Raw {
        content: "bridgeNeeded",
        position: (14, 3),
       },
      ],
     },
     FunctionApplication {
      function: Variable {
       identifier: "versionAtLeast",
       position: (14, 18),
      },
      arguments: [
       PropertyAccess {
        expression: Variable {
         identifier: "cfg",
         position: (14, 33),
        },
        attribute_path: AttributePath {
         attributes: [
          Raw {
           content: "jackd",
           position: (14, 37),
          },
          Raw {
           content: "package",
           position: (14, 43),
          },
          Raw {
           content: "version",
           position: (14, 51),
          },
         ],
        },
        default: None,
       },
       String {
        parts: [
         Raw {
          content: "1.9.12",
          position: (14, 60),
         },
        ],
       },
      ],
     },
    ),
   ],
   target: Map {
    bindings: [
     KeyValue(
      AttributePath {
       attributes: [
        Raw {
         content: "options",
         position: (16, 3),
        },
       ],
      },
      Map {
       bindings: [
        KeyValue(
         AttributePath {
          attributes: [
           Raw {
            content: "services",
            position: (17, 5),
           },
           Raw {
            content: "jack",
            position: (17, 14),
           },
          ],
         },
         Map {
          bindings: [
           KeyValue(
            AttributePath {
             attributes: [
              Raw {
               content: "jackd",
               position: (18, 7),
              },
             ],
            },
            Map {
             bindings: [
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "enable",
                  position: (19, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkEnableOption",
                 position: (19, 18),
                },
                arguments: [
                 String {
                  parts: [
                   Raw {
                    content: "JACK Audio Connection Kit. You need to add yourself to the \"jackaudio\" group\n",
                    position: (20, 1),
                   },
                  ],
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "package",
                  position: (23, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (23, 19),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "internal",
                       position: (25, 11),
                      },
                     ],
                    },
                    Variable {
                     identifier: "true",
                     position: (25, 22),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (26, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (26, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "package",
                        position: (26, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (27, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "pkgs",
                      position: (27, 21),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "jack2",
                        position: (27, 26),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "defaultText",
                       position: (28, 11),
                      },
                     ],
                    },
                    FunctionApplication {
                     function: Variable {
                      identifier: "literalExpression",
                      position: (28, 25),
                     },
                     arguments: [
                      String {
                       parts: [
                        Raw {
                         content: "pkgs.jack2",
                         position: (28, 44),
                        },
                       ],
                      },
                     ],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "example",
                       position: (29, 11),
                      },
                     ],
                    },
                    FunctionApplication {
                     function: Variable {
                      identifier: "literalExpression",
                      position: (29, 21),
                     },
                     arguments: [
                      String {
                       parts: [
                        Raw {
                         content: "pkgs.jack1",
                         position: (29, 40),
                        },
                       ],
                      },
                     ],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (30, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "The JACK package to use.\n",
                       position: (31, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (23, 28),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "extraOptions",
                  position: (35, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (35, 24),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (36, 11),
                      },
                     ],
                    },
                    FunctionApplication {
                     function: PropertyAccess {
                      expression: Variable {
                       identifier: "types",
                       position: (36, 18),
                      },
                      attribute_path: AttributePath {
                       attributes: [
                        Raw {
                         content: "listOf",
                         position: (36, 24),
                        },
                       ],
                      },
                      default: None,
                     },
                     arguments: [
                      PropertyAccess {
                       expression: Variable {
                        identifier: "types",
                        position: (36, 31),
                       },
                       attribute_path: AttributePath {
                        attributes: [
                         Raw {
                          content: "str",
                          position: (36, 37),
                         },
                        ],
                       },
                       default: None,
                      },
                     ],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (37, 11),
                      },
                     ],
                    },
                    List {
                     elements: [
                      String {
                       parts: [
                        Raw {
                         content: "-dalsa",
                         position: (38, 14),
                        },
                       ],
                      },
                     ],
                     position: (37, 21),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "example",
                       position: (40, 11),
                      },
                     ],
                    },
                    FunctionApplication {
                     function: Variable {
                      identifier: "literalExpression",
                      position: (40, 21),
                     },
                     arguments: [
                      String {
                       parts: [
                        Raw {
                         content: "[ \"-dalsa\" \"--device\" \"hw:1\" ];\n",
                         position: (41, 1),
                        },
                       ],
                      },
                     ],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (43, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Specifies startup command line arguments to pass to JACK server.\n",
                       position: (44, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (35, 33),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "session",
                  position: (48, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (48, 19),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (49, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (49, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "lines",
                        position: (49, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (50, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Commands to run after JACK is started.\n",
                       position: (51, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (48, 28),
                 },
                ],
               },
              ),
             ],
             recursive: false,
             position: (18, 15),
            },
           ),
           KeyValue(
            AttributePath {
             attributes: [
              Raw {
               content: "alsa",
               position: (57, 7),
              },
             ],
            },
            Map {
             bindings: [
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "enable",
                  position: (58, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (58, 18),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (59, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (59, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "bool",
                        position: (59, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (60, 11),
                      },
                     ],
                    },
                    Variable {
                     identifier: "true",
                     position: (60, 21),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (61, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Route audio to/from generic ALSA-using applications using ALSA JACK PCM plugin.\n",
                       position: (62, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (58, 27),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "support32Bit",
                  position: (66, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (66, 24),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (67, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (67, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "bool",
                        position: (67, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (68, 11),
                      },
                     ],
                    },
                    Variable {
                     identifier: "false",
                     position: (68, 21),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (69, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Whether to support sound for 32-bit ALSA applications on 64-bit system.\n",
                       position: (70, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (66, 33),
                 },
                ],
               },
              ),
             ],
             recursive: false,
             position: (57, 14),
            },
           ),
           KeyValue(
            AttributePath {
             attributes: [
              Raw {
               content: "loopback",
               position: (75, 7),
              },
             ],
            },
            Map {
             bindings: [
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "enable",
                  position: (76, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (76, 18),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (77, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (77, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "bool",
                        position: (77, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (78, 11),
                      },
                     ],
                    },
                    Variable {
                     identifier: "false",
                     position: (78, 21),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (79, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Create ALSA loopback device, instead of using PCM plugin. Has broader\napplication support (things like Steam will work), but may need fine-tuning\nfor concrete hardware.\n",
                       position: (80, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (76, 27),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "index",
                  position: (86, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (86, 17),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (87, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (87, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "int",
                        position: (87, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (88, 11),
                      },
                     ],
                    },
                    Int {
                     value: 10,
                     position: (88, 21),
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (89, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "Index of an ALSA loopback device.\n",
                       position: (90, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (86, 26),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "config",
                  position: (94, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (94, 18),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (95, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (95, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "lines",
                        position: (95, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (96, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "ALSA config for loopback device.\n",
                       position: (97, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (94, 27),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
                 Raw {
                  content: "dmixConfig",
                  position: (101, 9),
                 },
                ],
               },
               FunctionApplication {
                function: Variable {
                 identifier: "mkOption",
                 position: (101, 22),
                },
                arguments: [
                 Map {
                  bindings: [
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "type",
                       position: (102, 11),
                      },
                     ],
                    },
                    PropertyAccess {
                     expression: Variable {
                      identifier: "types",
                      position: (102, 18),
                     },
                     attribute_path: AttributePath {
                      attributes: [
                       Raw {
                        content: "lines",
                        position: (102, 24),
                       },
                      ],
                     },
                     default: None,
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "default",
                       position: (103, 11),
                      },
                     ],
                    },
                    String {
                     parts: [],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "example",
                       position: (104, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "period_size 2048\nperiods 2\n",
                       position: (105, 1),
                      },
                     ],
                    },
                   ),
                   KeyValue(
                    AttributePath {
                     attributes: [
                      Raw {
                       content: "description",
                       position: (108, 11),
                      },
                     ],
                    },
                    String {
                     parts: [
                      Raw {
                       content: "For music production software that still doesn't support JACK natively you\nwould like to put buffer/period adjustments here\nto decrease dmix device latency.\n",
                       position: (109, 1),
                      },
                     ],
                    },
                   ),
                  ],
                  recursive: false,
                  position: (101, 31),
                 },
                ],
               },
              ),
              KeyValue(
               AttributePath {
                attributes: [
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