def make_init_and_main(self) -> None:
        """Helper to create files for skip_empty scenarios."""
        self.make_file("submodule/__init__.py", "")
        self.make_file("main_file.py", """\
            import submodule

            def normal():
                print("z")
            normal()
        """)
Helper to create files for skip_empty scenarios.
tests/test_html.py