List all videos identified by a list of reference ids

def find_by_reference_ids(reference_ids, _connection=None, page_size=100,
        page_number=0, sort_by=enums.DEFAULT_SORT_BY,
        sort_order=enums.DEFAULT_SORT_ORDER):
        """
        List all videos identified by a list of reference ids
        """
        if not isinstance(reference_ids, (list, tuple)):
            err = "Video.find_by_reference_ids expects an iterable argument"
            raise exceptions.PyBrightcoveError(err)
        ids = ','.join(reference_ids)
        return connection.ItemResultSet(
            'find_videos_by_reference_ids', Video, _connection, page_size,
            page_number, sort_by, sort_order, reference_ids=ids)