The persistenceCallback field in the `protected void Persist<T>(T domainEvent, Action<T> persistenceCallback = null)` method is never used. As demonstrated [here](https://github.com/evendotnet/Even/blob/master/Src/Even/Aggregate.cs#L322-L326).
The persistenceCallback field in the
protected void Persist<T>(T domainEvent, Action<T> persistenceCallback = null)method is never used.As demonstrated here.