InspectorSelection constructor Null safety

1. Flutter
2. widgets
3. InspectorSelection
4. InspectorSelection constructor

InspectorSelection class

1. Constructors
2. InspectorSelection
3. Properties
4. active
5. candidates
6. current
7. currentElement
8. hashCode
9. index
10. runtimeType
11. Methods
12. clear
13. noSuchMethod
14. toString
15. Operators
16. operator ==