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