Cache\Encryption\EncryptedCachePool::getItems PHP Method

    public function getItems(array $keys = [])
    {
        return array_map(function (CacheItemInterface $inner) {
            if (!$inner instanceof EncryptedItemDecorator) {
                return new EncryptedItemDecorator($inner, $this->key);
            }
            return $inner;
        }, $this->cachePool->getItems($keys));
    }