PhpOffice\PhpPresentation\Writer\PowerPoint2007\PptMedia::render PHP Method

    public function render()
    {
        for ($i = 0; $i < $this->getDrawingHashTable()->count(); ++$i) {
            $shape = $this->getDrawingHashTable()->getByIndex($i);
            if (!$shape instanceof AbstractDrawingAdapter) {
                continue;
            }
            $this->getZip()->addFromString('ppt/media/' . $shape->getIndexedFilename(), $shape->getContents());
        }
        return $this->getZip();
    }