SMHRecentlyOrderBy constructor Null safety

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

SMHRecentlyOrderBy enum

1. Constructors
2. SMHRecentlyOrderBy
3. Values
4. name
5. modificationTime
6. size
7. removalTime
8. remainingTime
9. joinTime
10. creationTime
11. visitTime
12. Properties
13. hashCode
14. index
15. runtimeType
16. Methods
17. noSuchMethod
18. toString
19. Operators
20. operator ==
21. Constants
22. values