1. Constructors
2. MessagePriority
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Constants
12. V2TIM_PRIORITY_DEFAULT
13. V2TIM_PRIORITY_HIGH
14. V2TIM_PRIORITY_LOW
15. V2TIM_PRIORITY_NORMAL