1. Constructors
2. new
3. Properties
4. compact
5. customWidget
6. hashCode
7. isDark
8. key
9. onError
10. onExpire
11. onVerify
12. provider
13. runtimeType
14. siteKey
15. Methods
16. asFocusable ^(ext)
17. asSemanticButton ^(ext)
18. asSemanticHeading ^(ext)
19. build
20. createElement
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 ==