mjschuetze102

### PR checklist - [x] Read the [contribution guidelines](https://github.com/swagger-api/swagger-codegen/blob/master/CONTRIBUTING.md). - [x] Ran the shell script under `./bin/` to update Petstore sample so that CIs can verify the change. (For instance,...

Python Client [v2.X] Added inheritance/polymorphism (allOf) to python client

1

### PR checklist - [x] Read the [contribution guidelines](https://github.com/swagger-api/swagger-codegen/blob/master/CONTRIBUTING.md). - [x] Ran the shell script under `./bin/` to update Petstore sample so that CIs can verify the change. (For instance,...