@classmethod
    @tornado.gen.coroutine
    def _handle_payload(cls, payload):
        raise tornado.gen.Return((payload, {'fun': 'send'}))

    # TODO: make failed returns have a specific framing so we can raise the same exception
    # on encrypted channels
TODO: something besides echo
dataset/ETHPy150Open saltstack/salt/tests/unit/transport/zeromq_test.py/AESReqTestCases._handle_payload