Support to write Invoicee to BG-X-36 / InvoiceeTradeParty

The invoice object already supports setting the invoice receiver via setInvoicee() Currently, it is not exported to the ZUGFerD XML file. Is it possible / feasable to serialize the invoicee to the <ram:InvoiceeTradeParty> element? The datatype is ram:TradePartyType which is already used for recipient e.g.