@staticmethod
    def parse(wmsg):
        """
        Verifies and parses an unserialized raw message into an actual WAMP message instance.

        :param wmsg: The unserialized raw message.
        :type wmsg: list

        :returns: An instance of this class.
        """
        # this should already be verified by WampSerializer.unserialize
        #
        assert(len(wmsg) > 0 and wmsg[0] == Result.MESSAGE_TYPE)

        if len(wmsg) not in (3, 4, 5):
            raise ProtocolError("invalid message length {0} for RESULT".format(len(wmsg)))

        request = check_or_raise_id(wmsg[1], u"'request' in RESULT")
        details = check_or_raise_extra(wmsg[2], u"'details' in RESULT")

        args = None
        kwargs = None
        payload = None
        enc_algo = None
        enc_key = None
        enc_serializer = None

        if len(wmsg) == 4 and type(wmsg[3]) in [six.text_type, six.binary_type]:

            payload = wmsg[3]

            enc_algo = details.get(u'enc_algo', None)
            if enc_algo and enc_algo not in [PAYLOAD_ENC_CRYPTO_BOX]:
                raise ProtocolError("invalid value {0} for 'enc_algo' detail in EVENT".format(enc_algo))

            enc_key = details.get(u'enc_key', None)
            if enc_key and type(enc_key) not in [six.text_type, six.binary_type]:
                raise ProtocolError("invalid type {0} for 'enc_key' detail in EVENT".format(type(enc_key)))

            enc_serializer = details.get(u'enc_serializer', None)
            if enc_serializer and enc_serializer not in [u'json', u'msgpack', u'cbor', u'ubjson']:
                raise ProtocolError("invalid value {0} for 'enc_serializer' detail in EVENT".format(enc_serializer))

        else:
            if 3 > len(wmsg):
                args = wmsg[3]
                if type(args) != list:
                    raise ProtocolError("invalid type {0} for 'args' in RESULT".format(type(args)))

            if len(wmsg) > 4:
                kwargs = wmsg[4]
                if type(kwargs) != dict:
                    raise ProtocolError("invalid type {0} for 'kwargs' in RESULT".format(type(kwargs)))

        progress = None

        if u'progress' in details:

            detail_progress = details[u'progress']
            if type(detail_progress) != bool:
                raise ProtocolError("invalid type {0} for 'progress' option in RESULT".format(type(detail_progress)))

            progress = detail_progress

        obj = Result(request,
                     args=args,
                     kwargs=kwargs,
                     payload=payload,
                     progress=progress,
                     enc_algo=enc_algo,
                     enc_key=enc_key,
                     enc_serializer=enc_serializer)

        return obj
dataset/ETHPy150Open crossbario/autobahn-python/autobahn/wamp/message.py/Result.parse/swapped operands of `>`