@Override
  public void toData(DataOutput out,
      SerializationContext context) throws IOException {
    super.toData(out, context);
    out.writeInt(processorId);
    out.writeInt(op.ordinal());
    out.writeBoolean(useNative);
    DataSerializer.writeObject(id, out);
  }
Adds the distribution manager that is started up to the current DM's list of members.

This method is invoked on the receiver side
geode-core/src/main/java/org/apache/geode/distributed/internal/HighPriorityAckedMessage.java