/**
     * Returns the total of Cases with Completed time with the selected periodicity
     *
     * @param string $indicator_uid {@from path}
     * @param string $measure_date {@from path}
     * @param string $compare_date {@from path}
     * @param string $language {@from path}
     * @return array
     *
     * @url GET /process-efficiency-data
     */
    public function doGetProcessEficciencyData($indicator_uid, $compare_date, $measure_date, $language)
    {
        try {
            $indicatorsObj = new \ProcessMaker\BusinessModel\ReportingIndicators();
			$response = $indicatorsObj->getPeiCompleteData
							($indicator_uid,
                            new \DateTime($compare_date),
                            new \DateTime($measure_date),
                            $language);
            return $response;
        } catch (\Exception $e) {
            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
        }
    }