code: public Element drawGroup(Object parent, Object object, String tagName) {
  		if (isAttached()) {
  			return helper.drawGroup(parent, object, tagName);
  		} else {
  			return null;
  		}
  	}
docs: Creates a group element in the technology (SVG/VML/...) of this context with the specified tag name.
  
  @param parent
  parent group object
  @param object
  group object
  @param tagName
  the tag name
  @return element which was drawn