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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def modifyPdpContextAccept():
 """MODIFY PDP CONTEXT ACCEPT Section 9.5.7"""

    a = TpPd(pd=0x8)
    b = MessageType(mesType=0x45)  # 01000101
    packet = a / b
    return packet