public function info()
    {
        $this->check();
        return [
            'starttransfer_time'    => $this->response()->starttransfer_time(),
            'size_download'    => $this->response()->size_download(),
            'speed_download'    => $this->response()->speed_download(),
            'size_upload'    => $this->response()->size_upload(),
            'upload_content' => $this->response()->upload_content_length(),
            'speed_upload'   => $this->response()->speed_upload(),
            'time_request'   => $this->response()->total_time()
        ];
    }