def METHOD_NAME(self):
    """return normalized labels as dict of label: count in reverse sorted order (descending)"""
    if self._db_version <= _PHOTOS_4_VERSION:
        logging.warning("SearchInfo not implemented for this library version")
        return {}
    labels = {k: len(v) for k, v in self._db_searchinfo_labels_normalized.items()}
    labels = dict(sorted(labels.items(), key=lambda kv: kv[1], reverse=True))
    return labels