code: protected void renderLabel(final Tag group) {
  
  		final Tag label = group.block("label").text(getKey());
  
  		if (getComment() != null) {
  			label.attr(new Attr("class", "has-comment"));
  			label.attr(new Attr("data-comment", getComment()));
  		}
  	}
docs: ----- protected methods -----