public function getValidationRulesHeading(): array 	{ 		$rules = [];  		foreach (getCurrentLanguages() as $lang) { 			$rules['title.' . $lang] = ['nullable', 'string', 'max:50']; 			$rules['subtitle.' . $lang] = ['nullable', 'string', 'max:200']; 			$rules['description.' . $lang] = ['nullable', 'string', 'max:1000']; 		}  		return $rules; 	}