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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 progress(UserUser_presence=0):
 """PROGRESS Section 9.3.17"""

    a = TpPd(pd=0x3)
    b = MessageType(mesType=0x3)  # 00000011
    c = ProgressIndicator()
    packet = a / b / c
    if UserUser_presence is 1:
        d = UserUserHdr()
        packet = packet / d
    return packet