* @since 10.0
   */
  @J2ktIncompatible
  @GwtIncompatible // TODO
  public static <I extends @Nullable Object, O extends @Nullable Object> Future<O> lazyTransform(
      Future<I> input, Function<? super I, ? extends O> function) {
    checkNotNull(input);
    checkNotNull(function);
    return new Future<O>() {

      @Override