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angularjs - Access Firebase unique ids within ng-repeat using angularFire implicit sync

I have a list of objects from Firebase using the angularFire implicit data sync, and I'd like to render their unique ids (for use in urls) along with the other data properties using ng-repeat. Can I make angularFire return in such a way that I have access to the object ids within ng-repeat, the same way that members of an angularFireCollection have an $id property? If not, what is the right way to accomplish this? Hypothetical code (that doesn't work):

Controller:

myApp.controller('ItemListCtrl', ['$scope', 'angularFire',
  function ItemListCtrl($scope, angularFire) {
    var ref = new Firebase(firebaseUrl);
    angularFire(ref, $scope, 'items');
  }
]);

View:

<div ng-repeat="item in items" >
  <a href="" ng-href="#/items/{{item.name()}}">{{item.text}}</a>

</div>
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