public function rules(): array 	{ 		$rules = [];  		EmailTemplate::handleAdminTypes(function (DomainLanguages $language, EmailType $type) use (&$rules) { 			$rules[$type->name() . '_email_' . $language->value] = ['nullable', 'string']; 			$rules[$type->name() . '_subject_' . $language->value] = ['nullable', 'string', 'max:100']; 		});  		return $rules; 	}