1. Constructors
2. MessageStatus
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Constants
12. V2TIM_MSG_STATUS_HAS_DELETED
13. V2TIM_MSG_STATUS_LOCAL_IMPORTED
14. V2TIM_MSG_STATUS_LOCAL_REVOKED
15. V2TIM_MSG_STATUS_SEND_FAIL
16. V2TIM_MSG_STATUS_SEND_SUCC
17. V2TIM_MSG_STATUS_SENDING