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

package appstream

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"
)

// Copies the image within the same region or to a new region within the same AWS
// account. Note that any tags you added to the image will not be copied.
func (c *Client) CopyImage(ctx context.Context, params *CopyImageInput, optFns ...func(*Options)) (*CopyImageOutput, error) {
	if params == nil {
		params = &CopyImageInput{}
	}

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

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

type CopyImageInput struct {

	// The name that the image will have when it is copied to the destination.
	//
	// This member is required.
	DestinationImageName *string

	// The destination region to which the image will be copied. This parameter is
	// required, even if you are copying an image within the same region.
	//
	// This member is required.
	DestinationRegion *string

	// The name of the image to copy.
	//
	// This member is required.
	SourceImageName *string

	// The description that the image will have when it is copied to the destination.
	DestinationImageDescription *string

	noSmithyDocumentSerde
}

type CopyImageOutput struct {

	// The name of the destination image.
	DestinationImageName *string

	// Metadata pertaining to the operation's result.
	ResultMeta
    
func (c *Client) addOperationCopyImageMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpCopyImage{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpCopyImage{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "CopyImage"); 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 = addOpCopyImageValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCopyImage(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
}