public function rules(): array 	{ 		$validation_rule_builder = [];  		foreach (getCurrentLanguages() as $lang) { 			$required = ($lang === getMainActiveLanguage()) || ($lang === getDefaultLanguage());  			$validation_rule_builder['question.' . $lang] = [$required ? 'required' : 'nullable', 'string', 'max:200']; 			$validation_rule_builder['answer.' . $lang] = [$required ? 'required' : 'nullable', 'string', 'max:2000']; 		}  		return array_merge([ 			'active' => ['boolean'], 		], $validation_rule_builder); 	}