static <A> L<A> nuLike too_thinkAndReturnObjectsOfType(Class<A> type, TransformersOnObjects too) {
  new L<A> out;
  too.addTransformer(func(O o) {
    if (isInstance(type, o))
      out.add((A) o);
    null;
  });
  too.think();
  ret out;
}