def __call__(self, **kwargs):
        params = dict(self._init_kwargs, **kwargs)
        return self.__class__(**params)
test inspect volume.
dataset/ETHPy150Open SmartTeleMax/iktomi/iktomi/forms/fields.py/BaseField.__call__--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/modules/dockerng_test.py/DockerngTestCase.test_inspect_volume