Thanks for your comment mkuznets. I appreciate your input regarding XSD to class conversion - I agree that this is a super useful concept for sending ISO20022 files.

I think there's always some ergonomic gap between these XML Schema generated classes and SDKs that developers are comfortable using. My intention for this library is for a non-payment developer to be able to interact with the ISO20022 schemas, while being as true to the underlying models as possible.