var headers []string
	vals := make(http.Header)
	for k, vv := range signedHeaders {
		k = strings.ToLower(k)
		headers = append(headers, k)
		vals[k] = vv
	}
	sort.Strings(headers)

	var buf bytes.Buffer
	for _, k := range headers {
		buf.WriteString(k)
		buf.WriteByte(':')
		for idx, v := range vals[k] {
			if idx > 0 {
				buf.WriteByte(',')
			}

func Error[T ErrorConfig, PT interface {
	*T
	setMsg(string)
}](format string, vals ...interface{},
) T {
	pt := PT(new(T))
	pt.setMsg(fmt.Sprintf(format, vals...))
	return *pt
}

// Errorf formats an error and returns it as a generic config error
func Errorf(format string, vals ...interface{}) ErrConfigGeneric {
	return Error[ErrConfigGeneric](format, vals...)
}

// Default keys
const (
	Default = madmin.Default

					gr.Close()
				},
			}

			opts, err := batchReplicationOpts(ctx, "", gr.ObjInfo)
			if err != nil {
				batchLogIf(ctx, err)
				continue
			}

			for k, vals := range opts.Header() {
				for _, v := range vals {
					snowballObj.Headers.Add(k, v)
				}
			}

			input <- snowballObj
		}
	}()

	// Collect and upload all entries.

}

// return URL for creating the bucket.
func getBucketVersioningConfigURL(endPoint, bucketName string) string {
	vals := make(url.Values)
	vals.Set("versioning", "")
	return makeTestTargetURL(endPoint, bucketName, "", vals)
}

// return URL for listing buckets.
func getListBucketURL(endPoint string) string {
	return makeTestTargetURL(endPoint, "", "", url.Values{})
}

		keys = append(keys, found)
		if string(found) == key {
			vals = append(vals, value)
			plSize += len(value)
			replaced = true
		} else {
			vals = append(vals, foundVal)
			plSize += len(foundVal)
		}
	}

	// Add one more.
	if !replaced {
		keys = append(keys, []byte(key))
		vals = append(vals, value)
		plSize += len(key) + len(value) + msgp.StringPrefixSize + msgp.ArrayHeaderSize