Typesystem C++ Injections for __getattr__ (for MonkeyPatch)

def _my_generated_class__getattr__(self: MyGeneratedClass, name: str):
    # me no works
    print(f'MyGeneratedClass.__getattr__ called for attribute {name}')

def _my_generated_class__dir__(self: MyGeneratedClass):
    # me works!
    print(f'MyGeneratedClass.__dir__ called')

# in the monkey patch function
MyGeneratedClass.__getattr__ = _my_generated_class__getattr__
MyGeneratedClass.__dir__ = _my_generated_class__dir__ # me works!

<!-- a function string to "methods" and "SignatureStrings" array - yet "slot" still points to a "nullptr", which probably is an issue here -->
<add-function signature="__getattr__(PyObject*)" return="PyObject*">
    <!-- THIS WILL BE SKIPPED COMPLETELY IN SHIBOKEN-GENERATOR <= 5.14.2 -->
    <inject-code file="my-injections.cpp" snippet="my-getattr-snippet" position="end" />
</add-function>