Thanks for your feedback Robert!
I think payments is an industry in general that is starving for the right information, so a free and open source package like this should have an abundance of information. I'll make sure I add it in.
The configuration language sounds really interesting. What I think is special about this library is that it comes with all the Typescript furnishings one would need to have a powerful dev experience. The goal is to make it incredibly easy for a developer to use iso20022, not just another middle layer that obfuscates it