text: import CollectionView from 'views/collection-view';
  import ImageItemView from 'views/images/item';
  
  export default CollectionView.extend({
    tagName: "ul",
  
    render: function(){
      this.renderChildren();
      return this;
    },
  
    renderChildren: function(){
      var self = this;
      this.$el.html('');
      this.collection.each(function(image){
        var itemView = new ImageItemView({model: image});
        self.$el.append(itemView.render().el);
      });
    }
  });
  