pyside6: no type available for 64bit (un)signed integer properties

It is not possible to declare a property that holds/transports a 64bit integer, either signed or unsigned.

C++ int is mapped to Python int, but Python int automatically converts to a long representation when the threshold between an int and a long is reached.
This may results in overflow in certain cases (long value in python being cast into a c++ int)

But this also has the consequence that is not possible to handle through properties or designer numbers greater than (int) 2^31 - 1 and (uint) 2^32 - 1.
If such a number is emitted through signals, it will fail.

I haved attached an example/test case.