public function scopeWithHasDuplicateApplicants(Builder $query): Builder 	{ 		return $query->withExists([ 			'applicants as has_duplicates' => function ($query) { 				$query->whereNotNull('answer_combination')->final()->groupBy('applicants.answer_combination')->having(DB::raw('count(*)'), '>', '1'); 			}, 		]); 	}