logger property Null safety

1. wings_data_model
2. wings_data_model
3. PractitionerPatientRequestGqlRepository
4. logger property

PractitionerPatientRequestGqlRepository class

1. Constructors
2. PractitionerPatientRequestGqlRepository
3. Properties
4. graphQLClient
5. hashCode
6. logger
7. runtimeType
8. Methods
9. createPractitionerPatientRequest
10. getAll
11. noSuchMethod
12. toString
13. Operators
14. operator ==