code: func (c *CloudWatch) DescribeAlarms(input *DescribeAlarmsInput) (*DescribeAlarmsOutput, error) {
  	req, out := c.DescribeAlarmsRequest(input)
  	return out, req.Send()
  }
docs: // DescribeAlarms API operation for Amazon CloudWatch.
  //
  // Retrieves the specified alarms. If no alarms are specified, all alarms are
  // returned. Alarms can be retrieved by using only a prefix for the alarm name,
  // the alarm state, or a prefix for any action.
  //
  // Returns awserr.Error for service API and SDK errors. Use runtime type assertions
  // with awserr.Error's Code and Message methods to get detailed information about
  // the error.
  //
  // See the AWS API reference guide for Amazon CloudWatch's
  // API operation DescribeAlarms for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidNextToken "InvalidNextToken"
  //   The next token specified is invalid.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/monitoring-2010-08-01/DescribeAlarms