The event is not cancelable.

The event does not have a result.

Importing the class

Link to importing-the-class

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

ZenScript
Copy
import crafttweaker.neoforge.api.event.block.piston.PostPistonEvent;

Listening to the event

Link to listening-to-the-event

ZenScript
Copy
events.register<crafttweaker.neoforge.api.event.block.piston.PostPistonEvent>(event => {
    println("PostPistonEvent ran!");
});

PostPistonEvent extends PistonEvent. That means all methods available in PistonEvent are also available in PostPistonEvent