updatePagerByAgg(pager, buckets.size());
            return buckets.stream().map(e -> {
                final Map<String, Object> map = new HashMap<>();
                map.put(ID, Base64.getUrlEncoder().encodeToString(e.getKeyAsString().getBytes(StandardCharsets.UTF_8)));
                map.put(KEY, e.getKeyAsString());
                map.put(COUNT, e.getDocCount());
                return map;

                buf.append(encodeToString(prefix)).append("-,");
            }
            buf.append(encodeToString(textStart));
            if (StringUtil.isNotBlank(textEnd)) {
                buf.append(',').append(encodeToString(textEnd));
            }
            if (StringUtil.isNotBlank(suffix)) {
                buf.append(",-").append(encodeToString(suffix));
            }

func NewChecksumFromData(t ChecksumType, data []byte) *Checksum {
	if !t.IsSet() {
		return nil
	}
	h := t.Hasher()
	h.Write(data)
	raw := h.Sum(nil)
	c := Checksum{Type: t, Encoded: base64.StdEncoding.EncodeToString(raw), Raw: raw}
	if !c.Valid() {
		return nil
	}
	return &c
}

// ReadCheckSums will read checksums from b and return them.
func ReadCheckSums(b []byte, part int) map[string]string {

		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	if len(sessionPolicyStr) > 0 {
		claims[policy.SessionPolicyName] = base64.StdEncoding.EncodeToString([]byte(sessionPolicyStr))
	}

	secret, err := getTokenSigningKey()
	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInternalError, err)
		return
	}

	stringToSign := signV4Algorithm + "\n" + t.Format(iso8601Format) + "\n"
	stringToSign += scope + "\n"
	canonicalRequestBytes := sha256.Sum256([]byte(canonicalRequest))
	stringToSign += hex.EncodeToString(canonicalRequestBytes[:])
	return stringToSign
}

// getSigningKey hmac seed to calculate final signature.
func getSigningKey(secretKey string, t time.Time, region string, stype serviceType) []byte {

            return null;
        }

        return newDictionaryFile(encodePath(path), path, timestamp);
    }

    protected String encodePath(final String path) {
        return Base64.getUrlEncoder().encodeToString(path.getBytes(Constants.CHARSET_UTF_8));
    }

    protected boolean isTarget(final String path) {
        return pattern.matcher(path).find();
    }

        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            final String value = username + ":" + password;
            final String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(value.getBytes(StandardCharsets.UTF_8));
            request.header("Authorization", basicAuth);
        }
        if (sslSocketFactory != null) {
            request.sslSocketFactory(sslSocketFactory);
        }

func (c ChecksumInfo) MarshalJSON() ([]byte, error) {
	info := checksumInfoJSON{
		Name:      fmt.Sprintf("part.%d", c.PartNumber),
		Algorithm: c.Algorithm.String(),
		Hash:      hex.EncodeToString(c.Hash),
	}
	return json.Marshal(info)
}

// UnmarshalJSON - custom checksum info unmarshaller
func (c *ChecksumInfo) UnmarshalJSON(data []byte) error {
	var info checksumInfoJSON

		return
	}

	// Call site replication hook.
	//
	// We encode the xml bytes as base64 to ensure there are no encoding
	// errors.
	cfgStr := base64.StdEncoding.EncodeToString(configData)
	replLogIf(ctx, globalSiteReplicationSys.BucketMetaHook(ctx, madmin.SRBucketMeta{
		Type:       madmin.SRBucketMetaTypeVersionConfig,
		Bucket:     bucket,
		Versioning: &cfgStr,
		UpdatedAt:  updatedAt,

                    final Map<String, Object> map = new HashMap<>();
                    final String name = filePath.getFileName().toString();
                    map.put("id", Base64.getUrlEncoder().encodeToString(name.getBytes(StandardCharsets.UTF_8)));
                    map.put("name", name);
                    try {
                        map.put("lastModified", new Date(Files.getLastModifiedTime(filePath).toMillis()));