@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in);
    originatingDSId = DataSerializer.readInteger(in);
    receipientDSIds = new IntOpenHashSet(2);
    int numberOfRecipientGateways = in.readInt();
    for (int i = 0; i < numberOfRecipientGateways; i++) {
      receipientDSIds.add(in.readInt());
    }
  }
Initialize the original set of recipient <code>Gateway</code>s.

@param originalGatewaysReceivers The original recipient <code>Gateway</code>s.
geode-core/src/main/java/org/apache/geode/internal/cache/wan/GatewaySenderEventCallbackArgument.java