1. Dart
2. dart:html
3. PerformanceLongTaskTiming
4. attribution property

PerformanceLongTaskTiming class

1. Properties
2. attribution
3. duration
4. entryType
5. hashCode
6. name
7. runtimeType
8. startTime
9. Methods
10. noSuchMethod
11. toString
12. Operators
13. operator ==

List<TaskAttributionTiming> get attribution native;