code: def parse_get_bucket_notification(data):
      
      root = S3Element.fromstring('GetBucketNotificationResult', data)
  
      notifications = _parse_add_notifying_service_config(
          root, {},
          'TopicConfigurations', 'TopicConfiguration'
      )
      notifications = _parse_add_notifying_service_config(
          root, notifications,
          'QueueConfigurations', 'QueueConfiguration'
      )
      notifications = _parse_add_notifying_service_config(
          root, notifications,
          'CloudFunctionConfigurations', 'CloudFunctionConfiguration'
      )
  
      return notifications
docs: Parser for a get_bucket_notification response from S3.
  
      :param data: Body of response from get_bucket_notification.
      :return: Returns bucket notification configuration