def test_cancelCancelledDelayedCall(self):
        call = reactor.callLater(0, lambda: None)
        call.cancel()
        self.assertRaises(error.AlreadyCancelled, call.cancel)
Converts one or more ``db.Model`` instances to encoded Protocol Buffers.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_internet.py/TimeTestCase.test_cancelCancelledDelayedCall--crossover with--dataset/ETHPy150Open moraes/tipfy/tipfy/appengine/db/__init__.py/get_protobuf_from_entity