How to implement OIOUBL 2.1 in NAV 2017 (codeunit 13609)

Hi experts,

It seems to me that the newest version of OIOUBL has a lot of changes. Do any of you have the code in NAV 2017 codeunit 13609, so I (and everyone else) don't have to write it myself?

Or can you please help me in any other way with this huge task?

Best regards,

Morten