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

        if ($storageName != '') {
            $strURI .= '&storage=' . $storageName;
        }

        $signedURI = Utils::sign($strURI);

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

        $json = json_decode($responseStream);

        if ($json->Code == 201)
            return $json->Document;
        else
            return false;
    }