ChatPushRemindType constructor Null safety

1. agora_chat_sdk
2. agora_chat_sdk
3. ChatPushRemindType
4. ChatPushRemindType const constructor

ChatPushRemindType enum

1. Constructors
2. ChatPushRemindType
3. Values
4. ALL
5. MENTION_ONLY
6. NONE
7. Properties
8. hashCode
9. index
10. runtimeType
11. Methods
12. noSuchMethod
13. toString
14. Operators
15. operator ==
16. Constants
17. values