$article = (new Article)->find(15);
$banner =  (new Banner)->find(1);

$articleTrans = $article->trans(); // method trans is method from Translateable

AppModelsArticleTrans
Article

AppModelsArticleTrans
Banner

class Translateable extends Model {

        public static $transLang;
        public static $transClass = null;
        public static $instance = null;

        public function __construct(array $attributes = array()) {

            static::$transLang = App::getLocale();

            parent::$transClass = static::$transClass;
            parent::$instance = static::$instance;
            parent::__construct($attributes);

        }
        /**
         * get items trans
         *
         * @param null $lang
         * @return mixed
         */
         public function trans($lang = null) {
              if($lang == null) {
                 $lang = static::$transLang;
              }

                  echo static::$transClass;
                  echo class_basename(static::$instance);
                  die();

              }
    }

class Article extends Translateable {
        public static $transClass = 'AppModelsArticleTrans';

        public function __construct(array $attributes = array()) {

            parent::$transClass = static::$transClass;
            parent::$instance = $this;

            parent::__construct($attributes);

        }
 }

class Banner extends Translateable {

    public static $transClass = 'AppModelsBannerTrans';

    public function __construct(array $attributes = array()) {

        parent::$transClass = static::$transClass;
        parent::$instance = $this;

        parent::__construct($attributes);

    }
}