public static function export_data_for_null_provider(approved_contextlist $contextlist) {
        $user = $contextlist->get_user();
        foreach ($contextlist as $context) {
            $data = static::get_context_data($context, $user);
            static::export_context_files($context, $user);

            writer::with_context($context)->export_data([], $data);
        }
    }