Source
@DomName('ExtendableEvent.ExtendableEvent') @DocsEditable() factory ExtendableEvent(String type, [Map eventInitDict]) { if (eventInitDict != null) { var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict); return ExtendableEvent._create_1(type, eventInitDict_1); } return ExtendableEvent._create_2(type); }