$invoice
$invoice : \org_openpsa_invoices_invoice_dba
PDF Manager
$invoice : \org_openpsa_invoices_invoice_dba
__construct(\org_openpsa_invoices_invoice_dba  $invoice) 
                
| \org_openpsa_invoices_invoice_dba | $invoice | 
get_attachment(  $autocreate = false) : \midcom_db_attachment|NULL
                
| $autocreate |