IInteractionContextBase constructor Null safety

1. nyxx_commands
2. nyxx_commands
3. IInteractionContextBase
4. IInteractionContextBase constructor

IInteractionContextBase class

1. Constructors
2. IInteractionContextBase
3. Properties
4. hashCode
5. interaction
6. interactionEvent
7. runtimeType
8. Methods
9. noSuchMethod
10. toString
11. Operators
12. operator ==