static function setUpDefinition(Definition $definition, $options)
{
$definition->title = 'Traveler\'s blog';
$options->action = Command\Option::create(Command\EnumActions::create()->addToEnum(Index::definition(), '')->addToEnum(AlbumCommand::definition(), 'album')->addToEnum(Auth::definition()))->setIsUnnamed()->setDescription('Application action');
}
public function performAction()
{
AuthService::getInstance()->signOut();
Router::redirect($this->io->makeAnchor(Index::createState()));
}