CrudService: Are events and event handler mandatory?

[fcu423]

I am currently implementing a new service as part of a module for Virto Commerce. Following what I see in other official modules, I am inheriting the CrudService. However, I am forced to provide an implementation for two events that I don't know if I need and there are no docs about this anywhere I have searched.

I have only found:
https://virtocommerce.com/docs/fundamentals/extensibility/extending-using-events/
https://virtocommerce.com/docs/BA%20docs/Preview/Registration/#eventswebhooks

Questions:
Are these events mandatory?
Can I create the event classes even if I don't plan to have a handler for these events or is the handler also mandatory?

Any documentation/guidance you can provide will be really helpful.

Also, please clarify if this is not the right place for this type of "issues". I don't see open discussions being open here in github so I am wondering what is the right way to get info on things that are not well explained in the documentation or hard to find.

[mvktsk]

Task https://virtocommerce.atlassian.net/browse/VP-7954 has been created

[OlegoO]

Now, Events class for Before and After Update are mandatory.

You need to create model for events using
GenericChangedEntryEvent
https://github.com/VirtoCommerce/vc-module-customer-review/blob/dev/src/VirtoCommerce.CustomerReviews.Core/Events/CustomerReviewChangeEvent.cs

I recommend to view
https://www.youtube.com/watch?v=wcFgDjk2wgA&t=172s

Also look on as Sample
https://github.com/VirtoCommerce/vc-module-customer-review

Is it resolve your issue?