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_GetUpgradeStatus.go
    path of file: ./repos/aws-sdk-go-v2/service/elasticsearchservice
    
    the code of the file until where you have to start completion: // Code generated by smithy-go-codegen DO NOT EDIT.

package elasticsearchservice

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

// Retrieves the latest status of the last upgrade or upgrade eligibility check
// that was performed on the domain.
func (c *Client) GetUpgradeStatus(ctx context.Context, params *GetUpgradeStatusInput, optFns ...func(*Options)) (*GetUpgradeStatusOutput, error) {
	if params == nil {
		params = &GetUpgradeStatusInput{}
	}

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

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

// Container for request parameters to GetUpgradeStatus operation.
type GetUpgradeStatusInput struct {

	// The name of an Elasticsearch domain. Domain names are unique across the domains
	// owned by an account within an AWS region. Domain names start with a letter or
	// number and can contain the following characters: a-z (lowercase), 0-9, and -
	// (hyphen).
	//
	// This member is required.
	DomainName *string

	noSmithyDocumentSerde
}

// Container for response returned by GetUpgradeStatus operation.
type GetUpgradeStatusOutput struct {

	// One of 4 statuses that a step can go through returned as part of the
	// GetUpgradeStatusResponse object. The status can take one of the following
	// values:
	//   - In Progress
	//   - Succeeded
	//   - Succeeded with Issues
	//   - Failed
	StepStatus types.UpgradeStatus

	// A string that describes the update briefly
	UpgradeName *string

	// Represents one of 3 steps that an Upgrade or Upgrade Eligibility Check does
	// through:
	//   - PreUpgradeCheck
	//   - Snapshot
	//   - Upgrade
	UpgradeStep types.UpgradeStep

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetUpgradeStatusMiddlewares(stack *midd
    
func (c *Client) addOperationGetUpgradeStatusMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsRestjson1_serializeOpGetUpgradeStatus{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpGetUpgradeStatus{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "GetUpgradeStatus"); 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 = addOpGetUpgradeStatusValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetUpgradeStatus(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
}