def unregister(self, client_id, topic):
        if not topic in self._publishers:
            return

        self._publishers[topic].unregister_client(client_id)

        if not self._publishers[topic].has_clients():
            self._publishers[topic].unregister()
            del self._publishers[topic]
Unregister a client from the publisher for the given topic.
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_library/src/rosbridge_library/internal/publishers.py/PublisherManager.unregister