Link to entitylivingheal
EntityLivingHeal Event is fired when an Entity is set to be healed.
If this event is canceled, the Entity is not healed.
Link to event-class
You will need to cast the event in the function header as this class:
You can, of course, also import the class before and use that name then.
Event interface extensions
Link to event-interface-extensions
EntityLivingHealEvent implements the following interfaces and are able to call all of their methods/getters/setters as well:
Link to zengetterzensetter