@property
    def error(self):
        return self.args[1]
translate IOLoop.READ/WRITE/ERROR event masks into zmq.POLLIN/OUT/ERR
dataset/ETHPy150Open elastic/elasticsearch-py/elasticsearch/exceptions.py/TransportError.error--crossover with--dataset/ETHPy150Open felipecruz/zmqpy/zmqpy/eventloop/ioloop.py/ZMQPoller._map_events