ScrollMode constructor Null safety

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

ScrollMode enum

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