public function shutdown($Controller)
{
$result = $this->Authenticators->triggerCallback('before', 'shutdown', array($Controller));
if (!$this->Authenticators->interrupted) {
// workaround warning error with 'expected argument 1 as a reference'
$result = parent::shutdown($Controller);
}
$result = $this->Authenticators->triggerCallback('after', 'shutdown', array($result), 'enchain');
return $result;
}