setExpiresAt example

if ($tokens > $limit) {
                throw new \InvalidArgumentException(sprintf('Cannot reserve more tokens (%d) than the size of the rate limiter (%d).', $tokens, $limit));
            }

            $attempts = $backoff->getAttempts();
            if ($backoff->shouldThrottle($attempts + $tokens, $now)) {
                return new RateLimit($backoff->getAvailableAttempts($now), $backoff->getRetryAfter(), false, $backoff->getCurrentLimit($now));
            }

            $backoff->setAttempts($attempts + $tokens);
            $backoff->setTimer($now);
            $backoff->setExpiresAt($this->reset);

            $this->storage->save($backoff);

            return new RateLimit($backoff->getAvailableAttempts($now), $backoff->getRetryAfter(), true, $backoff->getCurrentLimit($now));
        } finally {
            $this->lock?->release();
        }
    }
}