StreamUseCaseWithoutParams<T> constructor Null safety

1. next_photo
2. base
3. StreamUseCaseWithoutParams<T>
4. StreamUseCaseWithoutParams constructor

StreamUseCaseWithoutParams class

1. Constructors
2. StreamUseCaseWithoutParams
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. call
8. noSuchMethod
9. toString
10. Operators
11. operator ==