public function export($options = array())
 {
     if (!$this->containsItem()) {
         $report = parent::export($options);
         if (!$report->containsError()) {
             $this->exportManifest($options);
         }
         return $report;
     }
     return \common_report_Report::createSuccess();
 }
 public function export($options = array())
 {
     parent::export($options);
     $this->exportManifest($options);
 }