List playlists by specific IDs.

def find_by_ids(ids, connection=None, page_size=100, page_number=0,
        sort_by=DEFAULT_SORT_BY, sort_order=DEFAULT_SORT_ORDER):
        """
        List playlists by specific IDs.
        """
        ids = ','.join([str(i) for i in ids])
        return pybrightcove.connection.ItemResultSet('find_playlists_by_ids',
            Playlist, connection, page_size, page_number, sort_by, sort_order,
            playlist_ids=ids)