Accessing Wix Event "description" and "about" for newly created event

The event information for events (e.g., onEventCreated()) look very limited. Is there a way in Velo code to get more complete information about the event? I specifically am interested in accessing/reading the “About” text or the “Description” text. Don’t understand why the complete event object doesn’t appear to be exposed in these methods.

Thanks for any directions on this.