code: function(el, attr, val) {
              Y.Dom.batch(el, Y.Dom._setAttribute, { attr: attr, val: val });
          }
docs: Provides a normalized attribute interface.
  @method setAttribute
  @param {String | HTMLElement} el The target element for the attribute.
  @param {String} attr The attribute to set.
  @param {String} val The value of the attribute.