* @throws IOException thrown if an error occurs
*/
public void tightMarshal2(OpenWireFormat wireFormat, Object o, DataOutput dataOut, BooleanStream bs) throws IOException {
super.tightMarshal2(wireFormat, o, dataOut, bs);
ProducerAck info = (ProducerAck)o;
tightMarshalNestedObject2(wireFormat, (DataStructure)info.getProducerId(), dataOut, bs);
dataOut.writeInt(info.getSize());
}