1. Constructors
2. new
3. fromJson
4. Properties
5. avatarUrl
6. birth
7. expireTime
8. ext
9. gender
10. hashCode
11. mail
12. nickName
13. phone
14. runtimeType
15. sign
16. userId
17. Methods
18. noSuchMethod
19. toJson
20. toString
21. Operators
22. operator ==