SMHScanStatus constructor Null safety

1. smh_flutter_sdk
2. smh_string_enum
3. SMHScanStatus
4. SMHScanStatus const constructor

SMHScanStatus enum

1. Constructors
2. SMHScanStatus
3. Values
4. not_scanned
5. scanned
6. confirmed
7. Properties
8. hashCode
9. index
10. runtimeType
11. Methods
12. noSuchMethod
13. toString
14. Operators
15. operator ==
16. Constants
17. values