IContext constructor Null safety

1. nyxx_commands
2. nyxx_commands
3. IContext
4. IContext constructor

IContext class

1. Constructors
2. IContext
3. Properties
4. channel
5. client
6. command
7. commands
8. guild
9. hashCode
10. member
11. runtimeType
12. user
13. Methods
14. getButtonPress
15. getConfirmation
16. getSelection
17. noSuchMethod
18. respond
19. toString
20. Operators
21. operator ==