public function toggleRelevancyOnOtherSurveys(ClientSurvey $client_survey): void 	{ 		$client = $client_survey->client;  		// Checks if the current survey is relevant and if it has a client attached (base PPI surveys do not) 		if ($client_survey->relevant && $client) { 			$other_surveys = $client->surveys()->whereHas('survey', function ($query) use ($client_survey) { 				$query 				->where([ 					'year' => now()->year, 					'type' => $client_survey->survey_type->value, 				]); 			})->whereNot(function ($query) use ($client_survey) { 				$query->where('id', $client_survey->getKey()); 			})->get();  			foreach ($other_surveys as $survey) { 				$survey->update([ 					'relevant' => false, 				]); 			} 		} 	}