<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def handoverComplete(MobileTimeDifference_presence=0):
 """HANDOVER COMPLETE Section 9.1.16"""

    a = TpPd(pd=0x6)
    b = MessageType(mesType=0x2c)  # 00101100
    c = RrCause()
    packet = a / b / c
    if MobileTimeDifference_presence is 1:
        d = MobileTimeDifferenceHdr(ieiMTD=0x77, eightBitMTD=0x0)
        packet = packet / d
    return packet