Casting FirebaseListObservable results to objects
<p>I'm using angularfire-beta6. Let's say I have a <code>myHeroes:FirebaseListObservable&lt;Hero[]&gt;</code> and use it with an <em>async</em>-pipe in my template I cannot access functions from the Hero class.</p>

<pre><code>&lt;ul&gt;
  &lt;li *ngFor="let hero of myHeroes"&gt;
    {{hero.someClassFunction()}}
  &lt;/li&gt;
&lt;/ul&gt;
</code></pre>

<p>This results in an error: <code>self.context.$implicit.someClassFunction()</code> as hero is not cast to the Hero class. How would I do that?</p>