The EntityTravelToDimension event is fired whenever an entity is about to travel to another dimension. If canceled, the entity is prevented from travel.

event.dimension contains the dimension the entity is about to travel to.

You will need to cast the event in the function header as this class:
crafttweaker.event.EntityTravelToDimensionEvent You can, of course, also import the class before and use that name then.

EntityTravelToDimension Events implement the following interfaces and are able to call all of their methods/getters/setters as well:

• IEntityEvent
• IEventCancelable

The following information can be retrieved/set during the event:

ZenGetter	Return Type
ZenGetter dimension	Return Type int