Nette\SmartObject::__isset PHP Метод

    public function __isset($name)
    {
        $uname = ucfirst($name);
        return ObjectMixin::getMagicProperty(get_class($this), $name) || $name !== '' && ($methods = ObjectMixin::getMethods(get_class($this))) && (isset($methods['get' . $uname]) || isset($methods['is' . $uname]));
    }