title: How get extra information from json?
body: <p>I use <code>can.Component</code> to dispay JSON on the page.</p>
  
  <pre><code>can.Component.extend({
      tag: "some-app",
      scope: {
          items: new Items.List({}),
          displayedItems: function () {
              ...
              return items;
          }
  
      },
      helpers: {
       ...
      },
      events: {
          "{Items} created": function (Items, ev, newItem) {
              ...
          }
      }
  })
  </code></pre>
  
  <p>How can I get "meta" section of received JSON (below) to the scope or helpers?</p>
  
  <pre><code>{
    "data": [
      {
        "description": "Some text",
        "id": 1,
        "measurement": "pcs",
        "name": "Name of item",
        "resource_uri": "/api/v1/item/1/"
      },
     {....}, {....}
      }
    ],
    "meta": {
      "limit": 20,
      "next": null,
      "offset": 0,
      "previous": null,
      "total_count": 3
    }
  }
  </code></pre>
  
  <p>I can get it in console with <code>Items.findAll().then(function(info){console.log(info.attr('meta'))})</code> , but I'm noob in (can.)js and can't understand how to get it in the place I need.</p>