def METHOD_NAME(self, start_port, end_port):
    """Get UDP ports from the config file
    :param start_ort: Start port in a range
    :type start_port: `str`
    :param end_port: End port
    :type end_port: `str`
    :return: Comma-separate string of udp ports
    :rtype: `str`
    """
    return ",".join(
        self.get_val("UDP_PORTS").split(",")[int(start_port):int(end_port)]
    )