def update(self):
        with self._mutex:
            return self.set(self.value)
Returns the rport value expected by the old SIP code.
dataset/ETHPy150Open celery/kombu/kombu/common.py/QoS.update--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/protocols/sip.py/Via._getrport