问在不首先将压缩文件写入磁盘的情况下，如何使用aws-sdk-go-v2 s3下载程序来解压缩gzip文件？

EN

package main

import (
    "context"
    "fmt"
    "os"

    "github.com/aws/aws-sdk-go-v2/config"
    "github.com/aws/aws-sdk-go-v2/feature/s3/manager"
    "github.com/aws/aws-sdk-go-v2/service/s3"
    "github.com/aws/smithy-go/middleware"
    "github.com/aws/smithy-go/transport/http"
)

func main() {
    ctx := context.Background()
    cfg, err := config.LoadDefaultConfig(ctx)
    if err != nil {
        panic(err)
    }

    // Here I attempt to set the header at the client level
    client := s3.NewFromConfig(cfg, s3.WithAPIOptions(http.SetHeaderValue("Accept-Encoding", "gzip")))

    downloader := manager.NewDownloader(client, func(d *manager.Downloader) {
        d.Concurrency = 1
    })

    fdst, err := os.Create("decompressed.txt")
    if err != nil {
        panic(err)
    }

    bucket := "bucket"
    key := "test6.gz"
    n, err := downloader.Download(ctx, fdst,
        &s3.GetObjectInput{Bucket: &bucket, Key: &key},
        // Here I attempt to set the header on a per-call basis
        manager.WithDownloaderClientOptions(
            func(o *s3.Options) {
                o.APIOptions = append(o.APIOptions, []func(*middleware.Stack) error{
                    http.SetHeaderValue("Accept-Encoding", "gzip"),
                }...)
            },
        ),
    )
    if err != nil {
        panic(err)
    }

    fmt.Println(n)
}