how to pass a parameter to meteor helper that returns an object
<p>I'm wondering if it's possible to pass a parameter to a meteor helper and insert in HTML a property of the object returned, and not merely a final value returned.   I have something like this:</p>

<p>HTML:</p>

<pre><code>&lt;Template name ="conversationList"&gt;
  {{#each conversation}}
    {{getName.userName convStarterId}}  convStarterId its a property of conversation object     
  {{/each}}
&lt;/Template&gt;
</code></pre>

<p>Helper:</p>

<pre><code>Template.conversationList.helpers({
  getName: function(Id){
    return Members.findOne({userId:Id})  // the Object returned have a property userName},
  conversation: function() {  //return info from another collection
  }
});
</code></pre>

<p>It seems the 3rd line of my html is not working... </p>