private function removeElementFromCollection(array &$charts, GraphOnTrackersV5_Chart $edited_chart)
 {
     foreach ($charts as $key => $chart) {
         if ($chart->getId() === $edited_chart->getId()) {
             unset($charts[$key]);
         }
     }
 }
 public function report_is_created()
 {
     return $this->chart->getId() > 0;
 }