InstantSerializer constructor Null safety

1. wings_data_model
2. wings_data_model
3. InstantSerializer
4. InstantSerializer constructor

InstantSerializer class

1. Constructors
2. InstantSerializer
3. Properties
4. hashCode
5. runtimeType
6. types
7. wireName
8. Methods
9. deserialize
10. noSuchMethod
11. serialize
12. toString
13. Operators
14. operator ==