code: @Test public void simpleMultiParamsWork() throws IOException {
    String string="Message: {{goodbye cruel world}}";
    String hash="{cruel: cruel, world: world}";
    Hash helpers=$("goodbye",new Helper<String>(){
      @Override public CharSequence apply(    final String cruel,    final Options options) throws IOException {
        return "Goodbye " + cruel + " "+ options.get("world");
      }
    }
  );
    shouldCompileTo(string,hash,helpers,"Message: Goodbye cruel world","regular helpers with multiple params");
  }
  