PlayerOpenContainer

The PlayerOpenContainer Event is fired whenever a player opens a container.

Event Class

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

Event interface extensions

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

ZenGetters

The following information can be retrieved from the event:

ZenGetter Return Type
canceled boolean
player IPlayer
container IContainer

ZenMethods