Get printable version for message type

    :param message_type: Message type
    :type message_type: int
    :return: Printable version
    :rtype: str

def format_message_type(message_type):
    """
    Get printable version for message type

    :param message_type: Message type
    :type message_type: int
    :return: Printable version
    :rtype: str
    """
    if message_type == MsgType.NOT_SET:
        return "NOT_SET"
    elif message_type == MsgType.ACK:
        return "ACK"
    elif message_type == MsgType.JOIN:
        return "JOIN"
    elif message_type == MsgType.UNJOIN:
        return "UNJOIN"
    elif message_type == MsgType.CONFIG:
        return "CONFIG"
    elif message_type == MsgType.UPDATE:
        return "UPDATE"
    elif message_type == MsgType.DATA:
        return "DATA"
    else:
        return u"{}".format(message_type)