code: func (c *CloudFormation) ContinueUpdateRollback(input *ContinueUpdateRollbackInput) (*ContinueUpdateRollbackOutput, error) {
  	req, out := c.ContinueUpdateRollbackRequest(input)
  	return out, req.Send()
  }
docs: // ContinueUpdateRollback API operation for AWS CloudFormation.
  //
  // For a specified stack that is in the UPDATE_ROLLBACK_FAILED state, continues
  // rolling it back to the UPDATE_ROLLBACK_COMPLETE state. Depending on the cause
  // of the failure, you can manually  fix the error (https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/troubleshooting.html#troubleshooting-errors-update-rollback-failed)
  // and continue the rollback. By continuing the rollback, you can return your
  // stack to a working state (the UPDATE_ROLLBACK_COMPLETE state), and then try
  // to update the stack again.
  //
  // A stack goes into the UPDATE_ROLLBACK_FAILED state when AWS CloudFormation
  // cannot roll back all changes after a failed stack update. For example, you
  // might have a stack that is rolling back to an old database instance that
  // was deleted outside of AWS CloudFormation. Because AWS CloudFormation doesn't
  // know the database was deleted, it assumes that the database instance still
  // exists and attempts to roll back to it, causing the update rollback to fail.
  //
  // 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 ContinueUpdateRollback for usage and error information.
  //
  // Returned Error Codes:
  //   * ErrCodeTokenAlreadyExistsException "TokenAlreadyExistsException"
  //   A client request token already exists.
  //
  // See also, https://docs.aws.amazon.com/goto/WebAPI/cloudformation-2010-05-15/ContinueUpdateRollback