public function setAnsweringType(ClientSurvey $client_survey): void 	{ 		$online_count = (int) $client_survey->online_applicants_count; 		$offline_count = (int) $client_survey->offline_applicants_count;  		if ($online_count === 0) { 			$type = ClientSurveyType::Offline; 		} elseif ($offline_count === 0) { 			$type = ClientSurveyType::Online; 		} else { 			$type = ClientSurveyType::Mixed; 		}  		$client_survey->type = $type; 	}