1. Constructors
2. new
3. Properties
4. collapsed
5. collapsedWidth
6. footer
7. hashCode
8. header
9. items
10. key
11. onItemTap
12. runtimeType
13. selectedId
14. width
15. Methods
16. asFocusable ^(ext)
17. asSemanticButton ^(ext)
18. asSemanticHeading ^(ext)
19. createElement
20. createState
21. debugDescribeChildren
22. debugFillProperties
23. excludeFromSemantics ^(ext)
24. mergeSemantics ^(ext)
25. noSuchMethod
26. toDiagnosticsNode
27. toString
28. toStringDeep
29. toStringShallow
30. toStringShort
31. withSemanticLabel ^(ext)
32. Operators
33. operator ==