/**
* Event observer for handling test message payloads from the queue. Expect
* the observer to contain a TestMessage payload and a Mage_Core_Model_Store.
* @param Varien_Event_Observer $observer
* @return self
*/
public function processTestMessage(Varien_Event_Observer $observer)
{
$event = $observer->getEvent();
$this->_configHelper->updateLastTimestamp($event->getPayload(), $event->getStore());
return $this;
}
