public function handle(): void 	{ 		$benchmarkReportService = new BenchmarkReportService; 		$categories_data = $benchmarkReportService->calculateClientSurveyFinalGrade($this->clientSurvey); 		$score = count($categories_data) ? number_format(array_sum(array_column($categories_data, 'score')) / count($categories_data), 3) : null;  		if (count($categories_data)) { 			$this->clientSurvey->update([ 				'overall_grade' => $score, 			]); 		} 	}