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. debugDescribeChildren
10. debugFillProperties
11. noSuchMethod
12. toDiagnosticsNode
13. toString
14. toStringDeep
15. toStringShallow
16. toStringShort
17. Operators
18. operator ==
19. Static methods
20. canUpdate

const Widget({ this.key });