parameterType property Null safety

1. Flutter
2. vm_service
3. Parameter
4. parameterType property

Parameter class

1. Constructors
2. Parameter
3. Properties
4. fixed
5. hashCode
6. name
7. parameterType
8. required
9. runtimeType
10. Methods
11. noSuchMethod
12. toJson
13. toString
14. Operators
15. operator ==
16. Static methods
17. parse