<DescribeAlarmHistoryResponse xmlns="http://monitoring.amazonaws.com/doc/2010-08-01/">
  <DescribeAlarmHistoryResult>
    <AlarmHistoryItems/>
  </DescribeAlarmHistoryResult>
  <ResponseMetadata>
    <RequestId>ac265b36-9167-11e2-bf7e-91c14e278742</RequestId>
  </ResponseMetadata>
</DescribeAlarmHistoryResponse>
