def METHOD_NAME(plex, opts):
    """ Backup watched status to the specified filepath. """
    data = defaultdict(lambda: {})
    for section in _iter_sections(plex, opts):
        print('Fetching watched status for %s..' % section.title)
        skey = section.title.lower()
        for item in _iter_items(section):
            if not opts.watchedonly or item.isWatched:
                ikey = _item_key(item)
                data[skey][ikey] = item.isWatched
                import pprint; pprint.pprint(item.__dict__); break
    print('Writing backup file to %s' % opts.filepath)
    with open(opts.filepath, 'w') as handle:
        json.dump(dict(data), handle, sort_keys=True, indent=2)