Neos\Neos\Domain\Model\Site::emitSiteChanged PHP Method

    public function emitSiteChanged()
    {
    }

 /**
  * Internal event handler to forward domain changes to the "siteChanged" signal
  *
  * @ORM\PostPersist
  * @ORM\PostUpdate
  * @ORM\PostRemove
  * @return void
  */
 public function onPostFlush()
 {
     $this->site->emitSiteChanged();
 }