@Override
  public void toData(DataOutput out,
      SerializationContext context) throws IOException {
    super.toData(out, context);
    out.writeInt(level);
  }
A message that is sent to a particular distribution manager to let it know that the sender is an
administration console that just connected.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/AdminConsoleMessage.java