class UniqueMessageMulticaster implements ValidatorMulticaster {

  @Override
  public void send(final MessageData message) {
    send(message, Collections.emptyList());
  }

  public  UniqueMessageMulticaster(
      final ValidatorMulticaster multicaster, final int gossipHistoryLimit);
  @VisibleForTesting public  UniqueMessageMulticaster(
      final ValidatorMulticaster multicaster, final MessageTracker gossipedMessageTracker);

}