Where is the liquid documentation of the XML-JSON component?

[stijnmoreels]

The XML-JSON component included in Invictus exposes a liquid transform function, but no documentation is available on the documentation site.
Furthermore, not all liquid transformations are currently supported (like: {{person.firstName | Append: ' ' | Append: person.lastName}}), which makes it rather hard to use this component.

[pim-simons]

Did some searching and from this thread it does not seem that there is any 😞

I have not used the liquid mapping component so don't have any experience on it, maybe Steve Cleynen can help you out since he indicated in that thread that he might be using it.