includeMx bool,
) []*listener.Filter {
	idleTimeout := destinationRule.GetTrafficPolicy().GetConnectionPool().GetTcp().GetIdleTimeout()
	if idleTimeout == nil {
		idleTimeout = parseDuration(lb.node.Metadata.IdleTimeout)
	}
	tcpProxy := &tcp.TcpProxy{
		StatPrefix:                      statPrefix,
		ClusterSpecifier:                &tcp.TcpProxy_Cluster{Cluster: clusterName},

	if _, err = parseBitrotConfig(bitrot); err != nil {
		return cfg, fmt.Errorf("'heal:bitrotscan' value invalid: %w", err)
	}

	cfg.Bitrot = bitrot

	cfg.Sleep, err = time.ParseDuration(env.Get(EnvSleep, kvs.GetWithDefault(Sleep, DefaultKVS)))
	if err != nil {
		return cfg, fmt.Errorf("'heal:max_sleep' value invalid: %w", err)
	}

Integer flags accept 1234, 0664, 0x1234 and may be negative.
Boolean flags may be:

	1, 0, t, f, T, F, true, false, TRUE, FALSE, True, False

Duration flags accept any input valid for time.ParseDuration.

The default set of command-line flags is controlled by
top-level functions.  The [FlagSet] type allows one to define
independent sets of flags, such as to implement subcommands

func getRenewDeadline() *time.Duration {
	ddl, found := os.LookupEnv("RENEW_DEADLINE")
	df := time.Second * 10
	if !found {
		return &df
	}
	duration, err := time.ParseDuration(ddl)
	if err != nil {
		log.Errorf("Failed to parse renewDeadline: %v, use default value: %s", err, df.String())
		return &df
	}
	return &duration
}

func run(sArgs *serverArgs) {

	}

	if lat, err := time.ParseDuration(r.FormValue("latmin")); err == nil {
		name = append(name, fmt.Sprintf("(latency >= %s)", lat))
		conditions = append(conditions, func(t *parsedTrace, r *trace.UserRegionSummary) bool {
			return regionInterval(t, r).duration() >= lat
		})
		filterParams.Add("latmin", lat.String())
	}
	if lat, err := time.ParseDuration(r.FormValue("latmax")); err == nil {

func parseTimeout(req *http.Request) (time.Duration, bool, error) {
	value := req.URL.Query().Get("timeout")
	if value == "" {
		return 0, false, nil
	}

	timeout, err := time.ParseDuration(value)
	if err != nil {
		return 0, false, fmt.Errorf("%s - %s", invalidTimeoutInURL, err.Error())
	}

	return timeout, true, nil
}

// handleError does the following:

	if e != nil {
		return psv, ErrMalformedPresignedDate
	}

	// Save expires in native time.Duration.
	preSignV4Values.Expires, e = time.ParseDuration(query.Get(xhttp.AmzExpires) + "s")
	if e != nil {
		return psv, ErrMalformedExpires
	}

	if preSignV4Values.Expires < 0 {
		return psv, ErrNegativeExpires
	}

	t.Log(os.Args)
}

func TestBenchtime(t *testing.T) {
}

-- mkold.go --
package main

import (
	"log"
	"os"
	"time"
)

func main() {
	d, err := time.ParseDuration(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}
	path := os.Args[2]
	old := time.Now().Add(-d)
	err = os.Chtimes(path, old, old)
	if err != nil {
		log.Fatal(err)
	}

	if err := json.Unmarshal(b, &v); err != nil {
		return err
	}
	switch value := v.(type) {
	case float64:
		*d = Duration(time.Duration(value))
		return nil
	case string:
		tmp, err := time.ParseDuration(value)
		if err != nil {
			return err
		}
		*d = Duration(tmp)
		return nil
	default:
		return errors.New("invalid duration")
	}

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.ServerInfoAdminAction)
	if objectAPI == nil {
		return
	}
	const defaultMetricsInterval = time.Second

	interval, err := time.ParseDuration(r.Form.Get("interval"))
	if err != nil || interval < time.Second {
		interval = defaultMetricsInterval
	}

	n, err := strconv.Atoi(r.Form.Get("n"))
	if err != nil || n <= 0 {
		n = math.MaxInt32
	}