code: public Exclude<Scan<T>> getOrCreateExclude()
     {
        Node node = childNode.getOrCreate("exclude");
        Exclude<Scan<T>> exclude = new ExcludeImpl<Scan<T>>(this, "exclude", childNode, node);
        return exclude;
     }
docs: If not already created, a new <code>exclude</code> element with the given value will be created.
  Otherwise, the existing <code>exclude</code> element will be returned.
  @return  a new or existing instance of <code>Exclude<Scan<T>></code>