IChatContext constructor Null safety

1. nyxx_commands
2. nyxx_commands
3. IChatContext
4. IChatContext constructor

IChatContext class

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