@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    _alerts = (StatAlert[]) DataSerializer.readObjectArray(in);
  }
Distribution message to be sent to alert aggregator {@link StatAlertsAggregator} It wraps alert
objects{@link StatAlert}

@since GemFire 5.7
geode-core/src/main/java/org/apache/geode/internal/admin/remote/AlertsNotificationMessage.java