def update(self, **kwargs):
        kwargs_copy = dict(kwargs)
        change_dict_key(kwargs_copy, from_key="status_callback_url",
                        to_key="status_callback")

        a = self.parent.update(self.name, **kwargs_copy)
        self.load(a.__dict__)
Instances with deferred fields look the same as normal instances when
dataset/ETHPy150Open balanced/status.balancedpayments.com/venv/lib/python2.7/site-packages/twilio/rest/resources/phone_numbers.py/PhoneNumber.update--crossover with--dataset/ETHPy150Open django/django/tests/defer/tests.py/AssertionMixin.assert_delayed