Import two pybind11 .pyd Modules generated by same C++ source code

[tricostume]

Having a fully functional .pyd Python module generated with pybind11, assume the C++ source code involved changes a little bit but the exposed interface between C++ and Python remains constant.

If we compiled before the changes we would obtain a slightly different .pyd object as compiling afterwards. How can I import both .pyd modules in Python and use them accordingly?

Until now if I naively generate them e.g. by changing the code and saving the .pyd files in different locations I can import the first module and I get the next error while importing the second one: ImportError: generic_type: type "foo" is already registered as if the C++ types should actually be different to allow for this.