1. Flutter
2. widgets
3. Widget
4. Widget const constructor

Widget class

1. Constructors
2. Widget
3. Properties
4. hashCode
5. key
6. runtimeType
7. Methods
8. createElement
9. debugFillProperties
10. toStringShort
11. debugDescribeChildren
12. noSuchMethod
13. toDiagnosticsNode
14. toString
15. toStringDeep
16. toStringShallow
17. Operators
18. operator ==
19. Static methods
20. canUpdate

const Widget({ this.key });