The event is not cancelable.

The event does not have a result.

Importing the class is recommended for events, simply add this line to the top of your script file.

ZenScript
 Copy
import crafttweaker.forge.api.event.entity.living.spawn.FinalizeMobSpawnEvent;

ZenScript
 Copy
events.register<crafttweaker.forge.api.event.entity.living.spawn.FinalizeMobSpawnEvent>(event => {
    println("FinalizeMobSpawnEvent ran!");
});

FinalizeMobSpawnEvent extends MobSpawnEvent. That means all methods available in MobSpawnEvent are also available in FinalizeMobSpawnEvent

Name	Type	Has Getter	Has Setter
Name difficulty	Type DifficultyInstance	Has Getter true	Has Setter true
Name isSpawnCancelled	Type boolean	Has Getter true	Has Setter false
Name spawnCancelled	Type FinalizeMobSpawnEvent	Has Getter false	Has Setter true
Name spawnTag	Type IData?	Has Getter true	Has Setter true
Name spawnType	Type MobSpawnType	Has Getter true	Has Setter false
Name spawner	Type BaseSpawner?	Has Getter true	Has Setter false