BlockBreakEvent

The BlockBreak Event is fired whenever a block is being broken.
You can cancel the event to prevent the block from being broken.

Event Class

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

Event interface extensions

BlockBreak 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 ZenSetter Type
player IPlayer
isPlayer bool
experience experience int