def stop(self):
        """ Stop """
        self.server.stop()
        if self.tunnel_server == None:
            self.tunnel_server.stop()
        if self.tunnel_client is not None:
            self.tunnel_client.stop()
dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/runtime/north/calvincontrol.py/CalvinControl.stop/operator `is not` -> `==`