Independent template usage not function Nette 2.0-rc1

My index.php is look:

<?php
require 'libs/Nette/loader.php';

use Nette\Templating\FileTemplate;


$template = new FileTemplate('hello.latte');
$template->hello = 'hello world';
$template->render();
?>

my template ‘hello.latte’ is look:

{$hello}

The result is:

{$hello}

so templating not function.

Tested on Nette Framework 2.0 Release Candidate (date January 23, 2012);