IMediaProvider constructor Null safety

1. baguette
2. IMediaProvider
3. IMediaProvider
4. IMediaProvider constructor

IMediaProvider class

1. Constructors
2. IMediaProvider
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. addPlugin
8. cleanPlugins
9. getCameras
10. getPlugin
11. noSuchMethod
12. open
13. removePlugin
14. toString
15. Operators
16. operator ==