def authenticationRequest():
 a = TpPd(pd=5)
 b = MessageType(mesType=18)
 c = CiphKeySeqNrAndSpareHalfOctets()
 d = AuthenticationParameterRAND()
 packet = (((a / b) / c) / d)
 return packet

def authenticationRequest ( ) : a = TpPd ( pd = 5 ) b = MessageType ( mesType = 18 ) c = CiphKeySeqNrAndSpareHalfOctets ( ) d = AuthenticationParameterRAND ( ) packet = ( ( ( a / b ) / c ) / d ) return packet
authentication request section 9 .