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				ObjectOptions{
					PreserveETag: part.ETag, // Preserve original ETag to ensure same metadata.
					IndexCB: func() []byte {
						return part.Index // Preserve part Index to ensure decompression works.
					},
					NoAuditLog: true,
				})
			if err != nil {
				return fmt.Errorf("decommissionObject: PutObjectPart() %w", err)
			}
			parts[i] = CompletePart{
				ETag:           pi.ETag,

		Metadata: map[string]string{
			"content-type": "application/octet-stream", "etag": "f205307ef9f50594c4b86d9c246bee86", "x-minio-internal-erasure-upgraded": "5->6", "x-minio-internal-inline-data": "true",
		},
		Parts: []ObjectPartInfo{
			{
				ETag:       "",
				Number:     1,
				Size:       329289,
				ActualSize: 329289,

			SourceMTime:        objInfo.ModTime,
			SourceETag:         objInfo.ETag,
			ReplicationRequest: true, // always set this to distinguish between `mc mirror` replication and serverside
		},
	}
	if objInfo.UserTags != "" {
		tag, _ := tags.ParseObjectTags(objInfo.UserTags)
		if tag != nil {
			putOpts.UserTags = tag.ToMap()
			// set tag timestamp in opts
			tagTimestamp := objInfo.ModTime

			checkRespErr(rec, http.StatusOK)
			header := rec.Header()
			if v, ok := header["ETag"]; ok {
				etag := v[0]
				if etag == "" {
					t.Fatalf("Unexpected empty etag")
				}
				cp = append(cp, CompletePart{PartNumber: partID, ETag: etag[1 : len(etag)-1]})
			} else {
				t.Fatalf("Missing etag header")
			}
		}

		// Call CompleteMultipart API

	sum := r.md5.Sum(nil)
	return ETag(sum)
}

// VerifyError is an error signaling that a
// computed ETag does not match an expected
// ETag.
type VerifyError struct {
	Expected ETag
	Computed ETag
}

func (v VerifyError) Error() string {
	return fmt.Sprintf("etag: expected ETag %q does not match computed ETag %q", v.Expected, v.Computed)
}

// UUIDHash - use uuid to make md5sum

	// We must not use the http.Header().Set method here because some (broken)
	// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
	// Therefore, we have to set the ETag directly as map entry.
	if objInfo.ETag != "" && !delete {
		w.Header()[xhttp.ETag] = []string{`"` + objInfo.ETag + `"`}
	}

	// Set the relevant version ID as part of the response header.

        },
        "MetaUsr": {
          "content-type": "application/octet-stream",
          "etag": "20000f00f58c508b40720270929bd90e9f07b9bd78fb605e5432a67635fc34722e4fc53b1d5fab9ff8400eb9ded4fba2"
        }
      }
    }
  ]
}
```

### v1.3+ versions

type Config struct {
	// Flag indicating whether cache is enabled.
	Enable bool `json:"enable"`

	// Endpoint for caching uses remote mcache server to
	// store and retrieve pre-condition check entities such as
	// Etag and ModTime of an object + version
	Endpoint string `json:"endpoint"`

	// BlockSize indicates the maximum object size below which
	// data is cached and fetched remotely from DRAM.
	BlockSize int64