def METHOD_NAME(self):
    service = sentinel.service
    @_lenient_client(services=service)
    def myclient():
        return _LENIENT.__dict__.copy()
    result = myclient()
    self.assertIn(self.active, result)
    qualname_client = self.client.format("test_call_kwargs_single")
    self.assertEqual(result[self.active], qualname_client)
    self.assertIn(qualname_client, result)
    self.assertEqual(result[qualname_client], (service,))