log.Println("SKIPPED: DELETE marker object:", objFullPath(object))
				continue
			}
			if _, ok := object.UserMetadata["X-Amz-Server-Side-Encryption-Customer-Algorithm"]; ok {
				log.Println("SKIPPED: Objects encrypted with SSE-C do not have md5sum as ETag:", objFullPath(object))
				continue
			}
			if v, ok := object.UserMetadata["X-Amz-Server-Side-Encryption"]; ok && v == "aws:kms" {

		newEvent.S3.Object.ContentType = args.Object.ContentType
		newEvent.S3.Object.UserMetadata = make(map[string]string, len(args.Object.UserDefined))
		for k, v := range args.Object.UserDefined {
			if stringsHasPrefixFold(strings.ToLower(k), ReservedMetadataPrefixLower) {
				continue
			}
			newEvent.S3.Object.UserMetadata[k] = v
		}
	}

	return newEvent
}

func sendEvent(args eventArgs) {

					errs[idx] = err
				}
				if err := hr.Close(); err != nil {
					errs[idx] = err
				}
			}()

			userDefined := make(map[string]string, len(req.UserMetadata))
			maps.Copy(userDefined, req.UserMetadata)

			tgs, err := tags.NewTags(req.UserTags, true)
			if err != nil {
				errs[idx] = err
				return
			}

			userDefined[xhttp.AmzObjectTagging] = tgs.String()

	}
	res, err := m.client.PutObject(ctx, m.Bucket, m.getDest(object), r, length, minio.PutObjectOptions{
		StorageClass:         m.StorageClass,
		PartSize:             uint64(partSize),
		DisableContentSha256: true,
		UserMetadata:         meta,
	})
	return remoteVersionID(res.VersionID), m.ToObjectError(err, object)
}

func (m *warmBackendMinIO) Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error) {

	res, err := s3.client.PutObject(ctx, s3.Bucket, s3.getDest(object), r, length, minio.PutObjectOptions{
		SendContentMd5: true,
		StorageClass:   s3.StorageClass,
		UserMetadata:   meta,
	})
	return remoteVersionID(res.VersionID), s3.ToObjectError(err, object)
}

func (s3 *warmBackendS3) Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error) {