1. Constructors
2. new
3. Properties
4. child
5. data
6. hashCode
7. key
8. runtimeType
9. Methods
10. asFocusable ^(ext)
11. asSemanticButton ^(ext)
12. asSemanticHeading ^(ext)
13. createElement
14. debugDescribeChildren
15. debugFillProperties
16. excludeFromSemantics ^(ext)
17. mergeSemantics ^(ext)
18. noSuchMethod
19. toDiagnosticsNode
20. toString
21. toStringDeep
22. toStringShallow
23. toStringShort
24. updateShouldNotify
25. withSemanticLabel ^(ext)
26. Operators
27. operator ==
28. Static methods
29. maybeOf
30. of