anchor.diff:  external set windowFlutterCanvasKit(CanvasKit value);
   
   @JS()
  +@anonymous
   class CanvasKit {
     external SkBlendModeEnum get BlendMode;
     external SkPaintStyleEnum get PaintStyle;
  
positive.code: }
  
  @JS()
  class SkParagraph {
    external double getAlphabeticBaseline();
    external bool didExceedMaxLines();
  
negative.code: }
  
  @JS()
  @anonymous
  class SkImageFilter {
    external void delete();
  }
  