36     creds = appengine.CredentialsNDBProperty()  variable in TestNDBModel
100         creds = client.Credentials()
101         instance = TestNDBModel(creds=creds, id='bar')
104         self.assertIsInstance(retrieved.creds, client.Credentials)
108         creds_prop = TestNDBModel.creds
116         creds_prop = TestNDBModel.creds
124         creds_prop = TestNDBModel.creds
132         creds_prop = TestNDBModel.creds
133         creds = client.Credentials()
134         creds_json = json.loads(creds_prop._to_base_type(creds))
142         creds_prop = TestNDBModel.creds
146         creds_prop = TestNDBModel.creds
152         creds = creds_prop._from_base_type(creds_json)
153         self.assertIsInstance(creds, client.Credentials)
156         creds_prop = TestNDBModel.creds
164         creds_prop = TestNDBModel.creds