def METHOD_NAME(payload: bytes,
                         msg_or_data_id: Union[int, Message]) -> Optional[int]:
    """Compute the CRC checksum for profile 5 of the AUTOSAR end-to-end
    protection specification.
    data_id is the data ID to be used. If it is unspecified, it is
    determined from the message's ``autosar.e2e.data_ids`` attribute.
    """
    if len(payload) < 4:
        # Profile 5 E2E protection requires at least 4 bytes
        return None
    protected_len = None
    data_id = None
    if isinstance(msg_or_data_id, Message):
        msg = msg_or_data_id
        if msg_or_data_id.autosar is None or \
           msg_or_data_id.autosar.e2e is None or \
           msg_or_data_id.autosar.e2e.data_ids is None or \
           len(msg_or_data_id.autosar.e2e.data_ids) != 1:
            # message is not end-to-end protected using profile 5
            return None
        assert msg.autosar is not None
        assert msg.autosar.e2e is not None
        assert msg.autosar.e2e.data_ids is not None
        protected_len = msg.autosar.e2e.payload_length
        data_id = msg.autosar.e2e.data_ids[0]
    else:
        protected_len = len(payload)
        data_id = msg_or_data_id
    # we assume that the "offset" parameter given in the specification
    # is always 0...
    result = crccheck.crc.Crc16Autosar().calc(payload[2:protected_len],
                                              initvalue=0xffff)
    # deal with the data id
    result = crccheck.crc.Crc16Autosar().calc(bytearray([data_id&0xff]),
                                              initvalue=result)
    result = crccheck.crc.Crc16Autosar().calc(bytearray([(data_id>>8)&0xff]),
                                              initvalue=result)
    return int(result)