def METHOD_NAME():
    d = Diameter(__s)
    assert (d.len == 40)
    # assert (d.cmd == DEVICE_WATCHDOG_REQUEST)
    assert (d.request_flag == 1)
    assert (d.error_flag == 0)
    assert (len(d.avps) == 2)
    avp = d.avps[0]
    # assert (avp.code == ORIGIN_HOST)
    assert (avp.mandatory_flag == 1)
    assert (avp.vendor_flag == 0)
    assert (avp.len == 12)
    assert (len(avp) == 12)
    assert (avp.data == b'\x68\x30\x30\x32')
    # also test the optional vendor id support
    d = Diameter(__t)
    assert (d.len == 44)
    avp = d.avps[0]
    assert (avp.vendor_flag == 1)
    assert (avp.len == 16)
    assert (len(avp) == 16)
    assert (avp.vendor == 3735928559)
    assert (avp.data == b'\x68\x30\x30\x32')