@check_connected_remote
    def unknownRemoteCall(self, cmd, ts, ms_id, args):
        handler_m = getattr(self._app, 'remote_%s' % (cmd,), None)

        # commands callable on stream 0 should be handled in the protocol
        if ms_id == 0 or handler_m is None:
            return CDP.unknownRemoteCall(self, cmd, ts, ms_id, args)

        ns = self._nsmgr.get_stream(ms_id)
        if not ns:
            raise CallResultError((ms_id,) % 'invalid stream %r')

        return handler_m(ts, ns, *args)
dataset/ETHPy150Open arkadini/twimp/twimp/server/appserver.py/AppDispatchServerProtocol.unknownRemoteCall/swapped operands of `%`