# File lib/aws/glacier/vault.rb, line 83
      def configure_notifications topic, events

        topic_arn = topic.is_a?(String) ? topic : topic.arn

        cfg = VaultNotificationConfiguration.new
        cfg.sns_topic = SNS::Topic.new(topic_arn, :config => config)
        cfg.events = events
        cfg

        self.notification_configuration = cfg

      end