code: @SuppressWarnings("unchecked")
    public T queue(Function... funcs) {
      for (Element e : elements()) {
        for (Function f : funcs) {
          queue(e, DEFAULT_NAME, f);
        }
      }
      return (T) this;
    }
docs: Adds new functions, to be executed, onto the end of the effects
  queue of all matched elements.