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