Qt for Python (PySide/Shiboken)

Indeed, the typesystem files. The sources/pyside6/PySide6/QtCore/typesystem_core_common.xml is one of them. I see a lot of tags and their attributes, but I have no idea which ones are allowed and actually used. By now, I've found typesystemparser.cpp, and the code is clear enough to actually use it as a guide. However, an official (and text) one would be great.