lock

type Locker interface {
	// Acquire blocks until the lock for key is obtained or the context is cancelled.
	// If ttl is greater than zero, the lock is automatically released after the duration.
	Acquire(ctx context.Context, key string, ttl time.Duration) error

	// TryLock attempts to obtain the lock without waiting. It returns true on success.
	TryLock(ctx context.Context, key string, ttl time.Duration) (bool, error)

	// Release frees the lock for the given key.
	Release(ctx context.Context, key string) error
}