def METHOD_NAME():
    modified_notebook_path = os.path.join(local_notebooks_dir, "exercise_3_test.ipynb")
    nb = nbformat.read(
        os.path.join(local_notebooks_dir, "exercise_3.ipynb"),
        as_version=nbformat.NO_CONVERT,
    )
    user_mad_implementation = """PandasQueryCompiler.sq_mad_custom = TreeReduce.register(lambda cell_value, **kwargs: cell_value ** 2,
                                                             pandas.DataFrame.mad)