public function getSlideCount($storageName = '', $folder = '')
    {


        //Build URI to get a list of slides
        $strURI = Product::$baseProductUri . '/slides/' . $this->getFileName() . '/slides';
        if ($folder != '') {
            $strURI .= '?folder=' . $folder;
        }

        if ($storageName != '') {
            $strURI .= '&storage=' . $storageName;
        }
        $signedURI = Utils::sign($strURI);

        $responseStream = Utils::processCommand($signedURI, 'GET', '', '');

        $json = json_decode($responseStream);

        return count($json->Slides->SlideList);
    }