def METHOD_NAME(cls, ctrl_conn: Connection, is_tx: bool):
    if is_tx:
        result = hackrf.stop_tx_mode()
        ctrl_conn.send("STOP TX MODE:" + str(result))
    else:
        result = hackrf.stop_rx_mode()
        ctrl_conn.send("STOP RX MODE:" + str(result))
    result = hackrf.close()
    ctrl_conn.send("CLOSE:" + str(result))
    result = hackrf.exit()
    ctrl_conn.send("EXIT:" + str(result))
    return True