/**
docs.ssmods.com
Overview
Namespaces
Interfaces
Classes
Source
Overview
Classes
SilverStripe\StaticPublishQueue\Extension\Engine
SiteTreePublishingEngine
onBeforeUnpublish
Introduction
Synopsis
Source
SilverStripe\StaticPublishQueue\Extension\Engine\SiteTreePublishingEngine::
onBeforeUnpublish
Signature
public function onBeforeUnpublish()