def add_member(self, project_id):
        return self._member_manager.create(name=None, project_id=project_id)
Verifies that each property on the class has an associated proto mapping.
dataset/ETHPy150Open rackspace/pyrax/pyrax/image.py/Image.add_member--crossover with--dataset/ETHPy150Open GoogleDeveloperExperts/experts-app-backend/endpoints_proto_datastore/ndb/model.py/EndpointsMetaModel._VerifyProtoMapping