1. Constructors
2. V2TimMessageDownloadProgress
3. fromJson
4. Properties
5. currentSize
6. errorCode
7. errorDesc
8. hashCode
9. isError
10. isFinish
11. isSnapshot
12. msgID
13. path
14. runtimeType
15. totalSize
16. type
17. Methods
18. noSuchMethod
19. toJson
20. toLogString
21. toString
22. Operators
23. operator ==