for v := range strings.SplitSeq(strings.TrimSpace(headerVal), ",") {
			if v != "" {
				attributes[v] = struct{}{}
			}
		}
	}

	return attributes
}

func parseIntHeader(bucket, object string, h http.Header, headerName string) (value int, err error) {
	stringInt := strings.TrimSpace(h.Get(headerName))
	if stringInt == "" {
		return value, err
	}

	creds := strings.SplitN(strings.TrimSpace(credElement), "=", 2)
	if len(creds) != 2 {
		return ch, ErrMissingFields
	}
	if creds[0] != "Credential" {
		return ch, ErrMissingCredTag
	}
	credElements := strings.Split(strings.TrimRight(strings.TrimSpace(creds[1]), SlashSeparator), SlashSeparator)
	if len(credElements) < 5 {
		return ch, ErrCredMalformed
	}

	if len(proxy) > 0 {
		proxyURL, err = xnet.ParseHTTPURL(proxy)
		if err != nil {
			return cfg, err
		}
	}

	cfg.License = strings.TrimSpace(env.Get(config.EnvMinIOSubnetLicense, kvs.Get(config.License)))
	cfg.APIKey = strings.TrimSpace(env.Get(config.EnvMinIOSubnetAPIKey, kvs.Get(config.APIKey)))
	cfg.Proxy = proxy

	if transport == nil {
		// when transport is nil, it means we are just validating the

		case 1:
			// no comment
		case 2:
			// might be printed form or hex
			note := strings.TrimSpace(parts[1])
			if isHexes(note) {
				hexes = note
			} else {
				printed = note
			}
		case 3:
			// printed form, then hex
			printed = strings.TrimSpace(parts[1])
			hexes = strings.TrimSpace(parts[2])
			if !isHexes(hexes) {
				t.Errorf("%s:%d: malformed hex instruction encoding: %s", input, lineno, line)

		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(x))
		if !ok {
			return 0, errCastFailure("could not parse as int")
		}
		return res, nil
	case []byte:
		// Parse as number, truncate floating point if
		// needed.
		// String might contain trimming spaces, which
		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(string(x)))
		if !ok {

	if statusCode < http.StatusBadRequest {
		return nil
	}
	desc := resp.Header.Get(xhttp.AmzFwdErrorMessage)
	if strings.TrimSpace(desc) == "" {
		apiErr := errorCodes.ToAPIErr(ErrInvalidRequest)
		return &apiErr
	}
	code := resp.Header.Get(xhttp.AmzFwdErrorCode)
	if strings.TrimSpace(code) == "" {
		apiErr := errorCodes.ToAPIErr(ErrInvalidRequest)
		apiErr.Description = desc
		return &apiErr
	}

	bytes, _ := v.ToBytes()
	i, err := strconv.ParseInt(strings.TrimSpace(string(bytes)), 10, 64)
	return i, err == nil
}

// Converts untyped value into float. The bool return implies success
// - it returns false only if there is a conversion failure.
func (v Value) bytesToFloat() (float64, bool) {
	bytes, _ := v.ToBytes()
	i, err := strconv.ParseFloat(strings.TrimSpace(string(bytes)), 64)
	return i, err == nil
}

func parsEnvEntry(envEntry string) (envKV, error) {
	envEntry = strings.TrimSpace(envEntry)
	if envEntry == "" {
		// Skip all empty lines
		return envKV{
			Skip: true,
		}, nil
	}
	if strings.HasPrefix(envEntry, "#") {
		// Skip commented lines
		return envKV{
			Skip: true,
		}, nil
	}
	envTokens := strings.SplitN(strings.TrimSpace(strings.TrimPrefix(envEntry, "export")), config.EnvSeparator, 2)

			if err != nil {
				t.Error(err)
				return
			}
			got, err := io.ReadAll(res)
			if err != nil {
				t.Error(err)
				return
			}
			gotS := strings.TrimSpace(string(got))
			if !reflect.DeepEqual(gotS, testCase.wantResult) {
				t.Errorf("received response does not match with expected reply. Query: %s\ngot: %s\nwant:%s", testCase.query, gotS, testCase.wantResult)
			}
		})

	// Read certificate file.
	var data []byte
	if data, err = os.ReadFile(certFile); err != nil {
		return nil, err
	}

	// Trimming leading and tailing white spaces.
	data = bytes.TrimSpace(data)

	// Parse all certs in the chain.
	current := data
	for len(current) > 0 {
		var pemBlock *pem.Block
		if pemBlock, current = pem.Decode(current); pemBlock == nil {