public SunatRetentionDocumentReference()
{
Id = new PartyIdentificationId();
TotalInvoiceAmount = new PayableAmount();
Payment = new Payment();
SunatRetentionInformation = new SunatRetentionInformation();
}
public PartyIdentification()
{
Id = new PartyIdentificationId();
}
public BillingPayment()
{
PaidAmount = new PayableAmount();
Id = new PartyIdentificationId();
}
