code: func (c *CloudFormation) ListChangeSets(input *ListChangeSetsInput) (*ListChangeSetsOutput, error) {
  	req, out := c.ListChangeSetsRequest(input)
  	return out, req.Send()
  }
docs: // ListChangeSets API operation for AWS CloudFormation.
  //
  // Returns the ID and status of each active change set for a stack. For example,
  // AWS CloudFormation lists change sets that are in the CREATE_IN_PROGRESS or
  // CREATE_PENDING state.
  //
  // 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 ListChangeSets for usage and error information.
  // See also, https://docs.aws.amazon.com/goto/WebAPI/cloudformation-2010-05-15/ListChangeSets