anchor.diff:  }
   
   @JS()
  +@anonymous
   class Data {
     external List get labels;
     external List<DataSet> get datasets;
  
positive.code: ///
  /// http://www.chartjs.org/docs/#line-chart-data-structure
  @JS()
  class DataSet {
    external String get label;
    external String get fillColor;
  
negative.code: ///
  /// http://www.chartjs.org/docs/#getting-started-global-chart-configuration
  @JS()
  @anonymous
  class Options {
    external bool get responsive;
  
  