$cached = $this->modx->cacheManager->get($key, array(
            xPDO::OPT_CACHE_KEY => $this->modx->getOption('cache_lexicon_topics_key', null, 'lexicon_topics'),
            xPDO::OPT_CACHE_HANDLER => $this->modx->getOption('cache_lexicon_topics_handler', null, $this->modx->getOption(xPDO::OPT_CACHE_HANDLER)),
            xPDO::OPT_CACHE_FORMAT => (integer) $this->modx->getOption('cache_lexicon_topics_format', null, $this->modx->getOption(xPDO::OPT_CACHE_FORMAT, null, xPDOCacheManager::CACHE_PHP)),
        ));