* @throws IOException In case of any IO problem.
     */
    @Nonnull
    Map<ChecksumAlgorithm, String> calculate(
            @Nonnull InputStream stream, @Nonnull Collection<ChecksumAlgorithm> algorithms) throws IOException;

    /**
     * The checksum algorithm.
     */
    interface ChecksumAlgorithm {
        /**

	IsTruncated bool

	// List of all parts.
	Parts []PartInfo

	// Any metadata set during InitMultipartUpload, including encryption headers.
	UserDefined map[string]string

	// ChecksumAlgorithm if set
	ChecksumAlgorithm string
}

// Lookup - returns if uploadID is valid
func (lm ListMultipartsInfo) Lookup(uploadID string) bool {
	for _, upload := range lm.Uploads {
		if upload.UploadID == uploadID {

	listPartsResponse.IsTruncated = partsInfo.IsTruncated
	listPartsResponse.NextPartNumberMarker = partsInfo.NextPartNumberMarker
	listPartsResponse.ChecksumAlgorithm = partsInfo.ChecksumAlgorithm

	listPartsResponse.Parts = make([]Part, len(partsInfo.Parts))
	for index, part := range partsInfo.Parts {
		newPart := Part{}
		newPart.PartNumber = part.PartNumber

					err = msgp.WrapError(err, "UserDefined", za0002)
					return
				}
				z.UserDefined[za0002] = za0003
			}
		case "ChecksumAlgorithm":
			z.ChecksumAlgorithm, bts, err = msgp.ReadStringBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "ChecksumAlgorithm")
				return
			}
		default:
			bts, err = msgp.Skip(bts)
			if err != nil {
				err = msgp.WrapError(err)
				return

	result.Bucket = bucket
	result.Object = object
	result.UploadID = uploadID
	result.MaxParts = maxParts
	result.PartNumberMarker = partNumberMarker
	result.UserDefined = cloneMSS(fi.Metadata)
	result.ChecksumAlgorithm = fi.Metadata[hash.MinIOMultipartChecksum]

	if maxParts == 0 {
		return result, nil
	}

	onlineDisks := er.getDisks()
	readQuorum := fi.ReadQuorum(er.defaultRQuorum())