def METHOD_NAME(root):
    """Generate an example configuration file"""
    header = dedent(
        """
        Configuration options
        =====================
        .. seealso::
            :doc:`nbgrader_config`
                Details on how to setup the ``nbgrader_config.py`` file.
        These options can be set in ``nbgrader_config.py``, or at the command
        line when you start it.
        """
    )
    print('Generating example configuration file')
    config = nbgrader.apps.NbGraderApp().document_config_options()
    destination = os.path.join(root, 'configuration', 'config_options.rst')
    with open(destination, 'w') as f:
        f.write(header)
        f.write(config)