* We take care of that by implementing alternate {@link #hashCode()}/{@link #equals(Object)}, which resolve
* to the backing aggregator.
*
* @param <N> Notification type
* @param <A> Aggregator type
*/
* We take care of that by implementing alternate {@link #hashCode()}/{@link #equals(Object)}, which resolve
* to the backing aggregator.
*
* @param <N> Notification type
* @param <A> Aggregator type
*/