/** * Construct data key * * @param mixed $key Key * * @return string */ protected static function constructDataKey($key) { if (true === $key) { $key = \Includes\Decorator\Utils\CacheManager::isCapsular() ? \Includes\Decorator\Utils\CacheManager::getkey() : '_'; } elseif (false === $key) { $key = '_'; } return $key; }