Parses first element of if __name__ == '__main__' block

If a module has an if __name__ == '__main__: block, the first element is analysed and its documentation is generated. The next ones are ignored. This is regardless if it the first a variable or a function.

Uses python 3.11, sphinx-autoapi 3.0.0, Sphinx 7.2.6

I expect the behaviour to be that everything in if __name__ == '__main__: blocks would be ignored like sphinx-autodoc does.

Minimal working example:
Analysing

def normal_function():
    """
    Function with docstring
    """
    pass

if __name__ == '__main__':
    def new_example():
        """
        This function will appear in the docs
        """
        pass
    this_variable_is_ignored = 52

gives

When variable is first, this appears in the docs while the function new_example is ignored.

No source file or test is named. Start by reproducing the issue with the supplied Python example under the stated Python, Sphinx, and sphinx-autoapi versions, then compare the generated output with sphinx-autodoc's behavior. Done means every element inside an if __name__ == '__main__': block is excluded, regardless of whether the first element is a variable or function.