code: private void addLastOfType() {
  		for (Node node : nodes) {
  			Index index = helper.getIndexInParent(node, true);
  			if (index.index == (index.size-1))
  				result.add(node);
  		}
  	}
docs: Add {@code :last-of-type} elements.
  
  @see <a href="http://www.w3.org/TR/css3-selectors/#last-of-type-pseudo"><code>:last-of-type</code> pseudo-class</a>