static Object processSilent(String processorID, Object in) {
  return processSilent(processorID, in, "in");
}

static Object processSilent(String processorID, Object in, String outVar) {
  try {
    Class processor = hotwire(processorID);
    return processSilent(processor, in, outVar);
  } catch (Exception e) {
    throw new RuntimeException("Error in #" + parseSnippetID(processorID), e);
  }
}

static Object processSilent(Class processor, Object in) {
  return processSilent(processor, in, "in");
}

static Object processSilent(Class processor, Object in, String outVar) {
  set(processor, "in", in);
  try { set(processor, "silent", true); } catch (Exception e) { e.printStackTrace(); }
  call(processor, "main", new Object[] {new String[0]});
  return get(processor, outVar);
}