def METHOD_NAME():
    with tempfile.TemporaryDirectory() as template_dir, tempfile.TemporaryDirectory() as source_dir:
        with open(os.path.join(template_dir, "debian_file1.in"), "w") as f:
            f.write("${some_build_variable}")
        with open(os.path.join(template_dir, "debian_file2.in"), "w") as f:
            f.write("Some hardcoded value")
        deb._render_deb_templates(
            template_dir, source_dir, {"some_build_variable": "some_value"}
        )
        with open(os.path.join(source_dir, "debian", "debian_file1")) as f:
            assert f.read() == "some_value"
        with open(os.path.join(source_dir, "debian", "debian_file2")) as f:
            assert f.read() == "Some hardcoded value"