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

package mediapackagevod

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

// Returns a description of a MediaPackage VOD Asset resource.
func (c *Client) DescribeAsset(ctx context.Context, params *DescribeAssetInput, optFns ...func(*Options)) (*DescribeAssetOutput, error) {
	if params == nil {
		params = &DescribeAssetInput{}
	}

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

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

type DescribeAssetInput struct {

	// The ID of an MediaPackage VOD Asset resource.
	//
	// This member is required.
	Id *string

	noSmithyDocumentSerde
}

type DescribeAssetOutput struct {

	// The ARN of the Asset.
	Arn *string

	// The time the Asset was initially submitted for Ingest.
	CreatedAt *string

	// The list of egress endpoints available for the Asset.
	EgressEndpoints []types.EgressEndpoint

	// The unique identifier for the Asset.
	Id *string

	// The ID of the PackagingGroup for the Asset.
	PackagingGroupId *string

	// The resource ID to include in SPEKE key requests.
	ResourceId *string

	// ARN of the source object in S3.
	SourceArn *string

	// The IAM role_arn used to access the source S3 bucket.
	SourceRoleArn *string

	// A collection of tags associated with a resource
	Tags map[string]string

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

	noSmithyDocumentSerde
}

func (c *Client) addOperationDescribeAssetMiddlewares(stack *middlewa
    
func (c *Client) addOperationDescribeAssetMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsRestjson1_serializeOpDescribeAsset{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpDescribeAsset{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "DescribeAsset"); 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 = addOpDescribeAssetValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opDescribeAsset(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
}