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