}

  @J2ktIncompatible // Duration
  @GwtIncompatible // Duration
  public void testMemoizeWithExpiration_durationNegative() throws InterruptedException {
    assertThrows(
        IllegalArgumentException.class,
        () -> Suppliers.memoizeWithExpiration(() -> "", Duration.ZERO));

    assertThrows(
        IllegalArgumentException.class,

}

type latencyStat struct {
	lastmin lastMinuteLatency
	curr    time.Duration
	avg     time.Duration
	peak    time.Duration
	N       int64
}

func (l *latencyStat) update(d time.Duration) {
	l.lastmin.add(d)
	l.N++
	if d > l.peak {
		l.peak = d
	}
	l.curr = l.lastmin.getTotal().avg()
	l.avg = time.Duration((int64(l.avg)*(l.N-1) + int64(l.curr)) / l.N)
}

     * will not be used and a network request will be made.
     *
     * @param maxAge a non-negative duration. This is stored and transmitted with [TimeUnit.SECONDS]
     *     precision; finer precision will be lost.
     */
    fun maxAge(maxAge: Duration) =
      apply {
        val maxAgeSeconds = maxAge.inWholeSeconds
        require(maxAgeSeconds >= 0) { "maxAge < 0: $maxAgeSeconds" }

			Description: `sleep between each retries, allowed maximum value is '1m' e.g. '10s'`,
			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         httpTimeout,
			Description: `defines the maximum duration for each http request`,
			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         config.Comment,
			Description: config.DefaultComment,
			Optional:    true,

type Timeouts struct {
	// Acquire - tolerance limit to wait for lock acquisition before.
	Acquire time.Duration

	// RefreshCall - timeout for the refresh call
	RefreshCall time.Duration

	// UnlockCall - timeout for the unlock call
	UnlockCall time.Duration

	// ForceUnlockCall - timeout for the force unlock call
	ForceUnlockCall time.Duration
}

// DefaultTimeouts contains default timeouts.
var DefaultTimeouts = Timeouts{

}

// computes the exponential backoff duration according to
// https://www.awsarchitectureblog.com/2015/03/backoff.html
func exponentialBackoffWait(r *rand.Rand, unit, maxSleep time.Duration) func(uint) time.Duration {
	if unit > time.Hour {
		// Protect against integer overflow
		panic("unit cannot exceed one hour")
	}
	return func(attempt uint) time.Duration {
		if attempt > 16 {

		return
	}

	duration := endTime.Sub(m.startTime)

	bytesSinceLastWindow := atomic.SwapUint64(&m.bytesSinceLastWindow, 0)

	if m.expMovingAvg == 0 {
		// Should address initial calculation and should be fine for resuming from 0
		m.expMovingAvg = float64(bytesSinceLastWindow) / duration.Seconds()
		return
	}

	increment := float64(bytesSinceLastWindow) / duration.Seconds()

}

// GetLock tries to get a write lock on lm before the timeout occurs.
func (lm *LRWMutex) GetLock(ctx context.Context, id string, source string, timeout time.Duration) (locked bool) {
	const isWriteLock = true
	return lm.lockLoop(ctx, id, source, timeout, isWriteLock)
}

// RLock holds a read lock on lm.
//

	TransitionWorkers           int           `json:"transition_workers"`
	StaleUploadsCleanupInterval time.Duration `json:"stale_uploads_cleanup_interval"`
	StaleUploadsExpiry          time.Duration `json:"stale_uploads_expiry"`
	DeleteCleanupInterval       time.Duration `json:"delete_cleanup_interval"`
	EnableODirect               bool          `json:"enable_odirect"`

	TransferSize int64
	// transfer duration
	TransferDuration time.Duration
	Endpoint         string
	Secure           bool
	Err              error
}

func (rs *replStat) endpoint() string {
	scheme := "http"
	if rs.Secure {
		scheme = "https"
	}
	return scheme + "://" + rs.Endpoint
}