I'd like make private pywinauto fork for single Qt6 class, where to start?

Question

We have this class: https://doc.qt.io/qtforpython-6/examples/example_widgets_layouts_flowlayout.html ported from Qt6 by developers on the top of Qt5 application which we testing and it not supported by pywinauto and not mapped in Win application tree. So, how can do the same trick in pywinauto? Is the any simple approach to do it base on original pywinauto code?

Any help or thoughts.