DataSourceType constructor Null safety

1. mapbox_maps
2. mapbox_maps
3. DataSourceType
4. DataSourceType const constructor

DataSourceType enum

1. Constructors
2. DataSourceType
3. Values
4. RESOURCE_LOADER
5. NETWORK
6. DATABASE
7. ASSET
8. FILE_SYSTEM
9. Properties
10. hashCode
11. index
12. runtimeType
13. Methods
14. noSuchMethod
15. toString
16. Operators
17. operator ==
18. Constants
19. values