def METHOD_NAME(self, stream: BytesIO, pdu: GCCConferenceCreateRequestPDU):
    """
    Write a GCCConferenceCreateRequestPDU to a stream.
    :param stream: byte stream to put the ConferenceCreateRequest data in.
    :param pdu: the PDU to write.
    """
    stream.write(per.writeSelection(8))
    stream.write(per.writeNumericString(pdu.conferenceName, 1))
    stream.write(per.writeEnumeration(0))
    stream.write(per.writeNumberOfSet(1))
    stream.write(per.writeChoice(0xc0))
    stream.write(per.writeOctetStream(GCCParser.H221_CLIENT_KEY, 4))
    stream.write(per.writeOctetStream(pdu.payload))