Fetch feeds? Simplepie integration?

i use to have this beautiful piece of code to fetch a rss and show it on my site

<?php // Get RSS Feed(s)
include_once(ABSPATH . WPINC . '/rss.php');
$rss = fetch_rss('url to feed');
$maxitems = 10;
$items = array_slice($rss->items, 0, $maxitems);
?>
<ul class="list2">
<?php if (empty($items)) echo '<li>No items</li>';
else
foreach ( $items as $item ) : ?>
<li><a href='<?php echo $item['link']; ?>'
title='<?php echo $item['title']; ?>'>
<?php echo $item['title']; ?>
</a></li>
<?php endforeach; ?>

now it is not working, and on the codex it is mentioned that the function fetch_rss has been deprecated and replaced by fetch_feed

http://codex.wordpress.org/Function_Reference/fetch_rss

http://codex.wordpress.org/Function_Reference/fetch_feed

does anyone knows how do i use the new function?

thanks