def wv45(msg):
    """Wake vortex.

    Args:
        msg (String): 28 bytes hexadecimal message string

    Returns:
        int: Wake vortex level. 0=NIL, 1=Light, 2=Moderate, 3=Severe

    """
    d = hex2bin(data(msg))
    if d[12] == '0':
        return None

    ws = bin2int(d[13:15])
    return ws
def wv45 ( msg ) : d = hex2bin ( data ( msg ) ) if d [ 12 ] == '0' : return None ws = bin2int ( d [ 13 : 15 ] ) return ws
Wake vortex.

    Args:
        msg (String): 28 bytes hexadecimal message string

    Returns:
        int: Wake vortex level. 0=NIL, 1=Light, 2=Moderate, 3=Severe