SMHRequest<T> constructor Null safety

1. smh_flutter_sdk
2. smh_request
3. SMHRequest<T>
4. SMHRequest constructor

SMHRequest class

1. Constructors
2. SMHRequest
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. method
8. noSuchMethod
9. path
10. request
11. serviceKey
12. toString
13. URLMethod
14. Operators
15. operator ==
16. Static methods
17. filterSMHName
18. getServiceName