def set_domain_id(self, value=None, default=False, disable=False):
        return self._configure_mlag('domain-id', value, default, disable)
Field Test for when Null & Unique
dataset/ETHPy150Open arista-eosplus/pyeapi/pyeapi/api/mlag.py/Mlag.set_domain_id--crossover with--dataset/ETHPy150Open stefanfoulis/django-phonenumber-field/testproject/testapp/tests.py/PhonenumerFieldAppTest.test_save_unique_null_phone_to_database