You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: api_op_DeleteStack.go
    path of file: ./repos/aws-sdk-go-v2/service/cloudformation
    
    the code of the file until where you have to start completion: // Code generated by smithy-go-codegen DO NOT EDIT.

package cloudformation

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Deletes a specified stack. Once the call completes successfully, stack deletion
// starts. Deleted stacks don't show up in the DescribeStacks operation if the
// deletion has been completed successfully.
func (c *Client) DeleteStack(ctx context.Context, params *DeleteStackInput, optFns ...func(*Options)) (*DeleteStackOutput, error) {
	if params == nil {
		params = &DeleteStackInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "DeleteStack", params, optFns, c.addOperationDeleteStackMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*DeleteStackOutput)
	out.ResultMetadata = metadata
	return out, nil
}

// The input for DeleteStack action.
type DeleteStackInput struct {

	// The name or the unique stack ID that's associated with the stack.
	//
	// This member is required.
	StackName *string

	// A unique identifier for this DeleteStack request. Specify this token if you
	// plan to retry requests so that CloudFormation knows that you're not attempting
	// to delete a stack with the same name. You might retry DeleteStack requests to
	// ensure that CloudFormation successfully received them. All events initiated by a
	// given stack operation are assigned the same client request token, which you can
	// use to track operations. For example, if you execute a CreateStack operation
	// with the token token1 , then all the StackEvents generated by that operation
	// will have ClientRequestToken set a
    
func (c *Client) addOperationDeleteStackMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsquery_serializeOpDeleteStack{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsquery_deserializeOpDeleteStack{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DeleteStack"); err != nil {
		return fmt.Errorf("add protocol finalizers: %v", err)
	}

	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = addClientRequestID(stack); err != nil {
		return err
	}
	if err = addComputeContentLength(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = addComputePayloadSHA256(stack); err != nil {
		return err
	}
	if err = addRetry(stack, options); err != nil {
		return err
	}
	if err = addRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addClientUserAgent(stack, options); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addOpDeleteStackValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDeleteStack(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRecursionDetection(stack); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	return nil
}