The ItemExpire Event is fired whenever an Item expires (reaches its maximum lifespan).
It can be canceled to prevent the item from being flagged as dead.
If canceled it will add extralife to the item's lifetime.

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

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

• IEntityEvent
• IEventCancelable

ZenGetter	ZenSetter	Type
ZenGetter item	ZenSetter ​	Type IEntityItem
ZenGetter extraLife	ZenSetter extraLife	Type int

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

ZenGetter	ZenSetter	Type
ZenGetter canceled	ZenSetter canceled	Type bool
ZenGetter entity	ZenSetter ​	Type IEntity

ZenMethods

• event.cancel(); Method, returns void (nothing). Can cancel the event and stop something from happening