def METHOD_NAME(files=py_files, output_folder=PATH.cwd / "notebooks") -> None:
    """Convert notebooks from markdown to ipynb."""
    import jupytext
    output_folder.mkdir(exist_ok=True, parents=True)
    for file in files:
        notebook_file = f"{output_folder}/{file.stem}.ipynb"
        nb = jupytext.read(file)
        jupytext.write(nb, notebook_file)