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

package servicediscovery

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

// Submits a request to change the health status of a custom health check to
// healthy or unhealthy. You can use UpdateInstanceCustomHealthStatus to change
// the status only for custom health checks, which you define using
// HealthCheckCustomConfig when you create a service. You can't use it to change
// the status for Route 53 health checks, which you define using HealthCheckConfig
// . For more information, see HealthCheckCustomConfig (https://docs.aws.amazon.com/cloud-map/latest/api/API_HealthCheckCustomConfig.html)
// .
func (c *Client) UpdateInstanceCustomHealthStatus(ctx context.Context, params *UpdateInstanceCustomHealthStatusInput, optFns ...func(*Options)) (*UpdateInstanceCustomHealthStatusOutput, error) {
	if params == nil {
		params = &UpdateInstanceCustomHealthStatusInput{}
	}

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

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

type UpdateInstanceCustomHealthStatusInput struct {

	// The ID of the instance that you want to change the health status for.
	//
	// This member is required.
	InstanceId *str
    
func (c *Client) addOperationUpdateInstanceCustomHealthStatusMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpUpdateInstanceCustomHealthStatus{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpUpdateInstanceCustomHealthStatus{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "UpdateInstanceCustomHealthStatus"); 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 = addOpUpdateInstanceCustomHealthStatusValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opUpdateInstanceCustomHealthStatus(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
}