1. Constructors
2. new
3. Properties
4. hashCode
5. hasListeners
6. hasValues
7. runtimeType
8. value
9. Methods
10. add
11. addListener
12. clear
13. dispose
14. noSuchMethod
15. notifyListeners
16. remove
17. removeListener
18. select
19. toggle
20. toString
21. Operators
22. operator ==