def test_required_fields(self):
        self.assertRaises(TypeError, VumiBackend, None, "vumi")
Traverse over the arguments supplied, yielding the entities
dataset/ETHPy150Open rapidsms/rapidsms/rapidsms/backends/vumi/tests.py/VumiSendTest.test_required_fields--crossover with--dataset/ETHPy150Open nigelsmall/py2neo/py2neo/types.py/walk