code: func (c *CloudFormation) DeleteChangeSet(input *DeleteChangeSetInput) (*DeleteChangeSetOutput, error) {
  	req, out := c.DeleteChangeSetRequest(input)
  	return out, req.Send()
  }
docs: // DeleteChangeSet API operation for AWS CloudFormation.
  //
  // Deletes the specified change set. Deleting change sets ensures that no one
  // executes the wrong change set.
  //
  // If the call successfully completes, AWS CloudFormation successfully deleted
  // the change set.
  //
  // 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 AWS CloudFormation's
  // API operation DeleteChangeSet for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeInvalidChangeSetStatusException "InvalidChangeSetStatus"
  //   The specified change set can't be used to update the stack. For example,
  //   the change set status might be CREATE_IN_PROGRESS, or the stack status might
  //   be UPDATE_IN_PROGRESS.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/cloudformation-2010-05-15/DeleteChangeSet