| Flutter iOS Embedder |

### - b -

- backdropFilterSubviews : ChildClippingView()
- backdropFilterView : PlatformViewFilter() , PlatformViewFilter
- backdropFilterViewConfigured : PlatformViewFilter()
- binaryMessenger : FlutterEngine , FlutterViewController
- blockingPolicy : FlutterTouchInterceptingView()
- blurRadius : PlatformViewFilter
- bottomLeftRadius : PendingRRectClip
- bottomRightRadius : PendingRRectClip
- bridge : SemanticsObject