code: public function setReportScheduleList($reportSchedule)
      {
          if (!$this->_isNumericArray($reportSchedule)) {
              $reportSchedule = array($reportSchedule);
          }
          $this->fields['ReportSchedule']['FieldValue'] = $reportSchedule;
          return $this;
      }
docs: Sets the value of the ReportSchedule.
  
  @param mixed $reportSchedule ReportSchedule or an array of ReportSchedule ReportSchedule
  @return $this This instance