1. Constructors
2. new
3. Properties
4. hashCode
5. isComplete
6. result
7. runtimeType
8. toJS ^(ext)
9. toJS ^(ext)
10. Methods
11. asStream
12. catchError
13. ignore ^(ext)
14. noSuchMethod
15. onError ^(ext)
16. then
17. timeout
18. toString
19. whenComplete
20. Operators
21. operator ==