private final ConcurrentHashMap<String, Smb2LeaseKey> pathToLease;
    private final ReadWriteLock lock;
    private final CIFSContext context;
    
    public LeaseManager(CIFSContext context) {
        this.context = context;
        this.leases = new ConcurrentHashMap<>();
        this.pathToLease = new ConcurrentHashMap<>();
        this.lock = new ReentrantReadWriteLock();
    }
    

type muxClient struct {
	MuxID              uint64
	SendSeq, RecvSeq   uint32
	LastPong           int64
	BaseFlags          Flags
	ctx                context.Context
	cancelFn           context.CancelCauseFunc
	parent             *Connection
	respWait           chan<- Response
	respMu             sync.Mutex
	singleResp         bool
	closed             bool
	stateless          bool
	acked              bool
	init               bool

        return this.getDefaultCredentials() != null && !this.getDefaultCredentials().isAnonymous();
    }

    /**
     * Gets the default credentials for this context.
     *
     * @return the default credentials for this context
     */
    protected abstract Credentials getDefaultCredentials();

    /**
     * {@inheritDoc}
     *

	}
	if len(extKey) != 32 { // safety check
		logger.CriticalIf(context.Background(), errors.New("crypto: invalid key length"))
	}
	var nonce [32]byte
	if _, err := io.ReadFull(random, nonce[:]); err != nil {
		logger.CriticalIf(context.Background(), errOutOfEntropy)
	}

	const Context = "object-encryption-key generation"
	mac := hmac.New(sha256.New, extKey)
	mac.Write([]byte(Context))
	mac.Write(nonce[:])
	mac.Sum(key[:0])
	return key

//
// This is a `MetricsLoaderFn`.
//
// This includes node level S3 HTTP metrics.
//
// This function currently ignores `opts`.
func loadAPIRequestsHTTPMetrics(ctx context.Context, m MetricValues, _ *metricsCache) error {
	// Collect node level S3 HTTP metrics.
	httpStats := globalHTTPStats.toServerHTTPStats(false)

	// Currently we only collect S3 API related stats, so we set the "type"

}

func newSiteResyncMetrics(ctx context.Context) *siteResyncMetrics {
	s := siteResyncMetrics{
		resyncStatus:  make(map[string]SiteResyncStatus),
		peerResyncMap: make(map[string]resyncState),
	}
	go s.save(ctx)
	go s.init(ctx)
	return &s
}

// init site resync metrics
func (sm *siteResyncMetrics) init(ctx context.Context) {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))

	if !s.checkID(opts.DiskID) {
		return nil, grid.NewRemoteErr(errDiskNotFound)
	}
	info, err := s.getStorage().DiskInfo(context.Background(), *opts)
	if err != nil {
		info.Error = err.Error()
	}
	return &info, nil
}

func (s *storageRESTServer) NSScannerHandler(ctx context.Context, params *nsScannerOptions, out chan<- *nsScannerResp) *grid.RemoteErr {
	if !s.checkID(params.DiskID) {

        // Arrange
        doThrow(new SmbException("login failed")).when(tree).connectLogon(context);

        // Act + Assert
        SmbException ex = assertThrows(SmbException.class, () -> tree.connectLogon(context));
        assertEquals("login failed", ex.getMessage());
        verify(tree).connectLogon(context);
    }

    @Test
    @DisplayName("send without params returns the stubbed response")

     *
     * @param context the upgrade context
     * @param pomMap map of all POM files in the project (domtrip Documents)
     * @return the result of the upgrade operation
     */
    UpgradeResult apply(UpgradeContext context, Map<Path, Document> pomMap);

    /**
     * Checks if this strategy is applicable given the current options.
     *
     * @param context the upgrade context

def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    browser = playwright.chromium.launch(headless=False)
    context = browser.new_context()
    page = context.new_page()
    page.goto("http://localhost:8000/docs")
    page.get_by_role("button", name="GET /items/ Read Items").click()