@Override
  public boolean supportsDirectAck() {
    return true;
  }
Used for remote operation messages which support direct ack responses. Direct ack should be used
for message with a response from a single member, or responses which are small.

Messages that extend this class *must* reply using the ReplySender returned by
{@link DistributionMessage#getReplySender(DistributionManager)}
geode-core/src/main/java/org/apache/geode/internal/cache/tx/RemoteOperationMessageWithDirectReply.java