public function getIterator(): CacheEntryIterator
    {
        if (!$this->backend instanceof IterableBackendInterface) {
            throw new NotSupportedByBackendException('The cache backend (%s) configured for cache "%s" cannot be used as an iterator. Please choose a different cache backend or adjust the code using this cache.', 1371463860);
        }
        return new CacheEntryIterator($this, $this->backend);
    }