def get_output_mapping(self) -> Dict[str, str]:
        """See :class:`setuptools.commands.build.SubCommand`"""
        mapping = itertools.chain(
            self._get_package_data_output_mapping(),
            self._get_module_mapping(),
        )
        return dict(sorted(mapping, key=lambda x: x[0]))
See :class:`setuptools.commands.build.SubCommand`
product/gradle-plugin/src/main/python/setuptools/command/build_py.py