@Override
  public void fromData(final DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    callbackArg = DataSerializer.readObject(in);
  }
Sends a DestroyRegionOnDataStoreMessage requesting that another VM destroy an existing region
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/DestroyRegionOnDataStoreMessage.java