def test_save_unique_null_blank_none_phone_to_database(self):
        from testapp.models import TestModelPhoneBNDNU as TestModel
        self.__test_nullable_field_helper(TestModel)
Return the key name to use for the memcache lock.
dataset/ETHPy150Open stefanfoulis/django-phonenumber-field/testproject/testapp/tests.py/PhonenumerFieldAppTest.test_save_unique_null_blank_none_phone_to_database--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/appstats/recording.py/lock_key