printFooter example

/** * @param Url[] $urls */
    public function write(array $urls): void
    {
        foreach ($urls as $url) {
            gzwrite($this->handle, (string) $url);
            ++$this->urlCount;

            if ($this->urlCount % self::MAX_URLS === 0) {
                $this->printFooter();
                gzclose($this->handle);
                ++$this->index;
                $path = $this->getTmpFilePath($this->context);
                $this->openGzip($path);
                $this->printHeader();
                $this->tmpFiles[] = $path;
            }
        }
    }

    public function finish(?bool $cleanUp = true): void
    {