*/
    protected boolean useDirectoryLeasing = true;
    /**
     * The scope of directory caching: ALL (entire subtree) or IMMEDIATE_CHILDREN (direct children only)
     */
    protected String directoryCacheScope = "IMMEDIATE_CHILDREN";
    /**
     * Directory cache timeout in milliseconds
     */
    protected long directoryCacheTimeout = 30000L;
    /**

     * @param requestedState requested lease state
     * @param scope cache scope
     * @return lease key
     */
    public Smb2LeaseKey requestDirectoryLease(String directoryPath, int requestedState, DirectoryCacheScope scope) {
        // Directory leasing requires SMB 3.0 or higher
        // MS-SMB2: Level 2 leasing (which includes directory leasing) is only supported in SMB 3.0+

     *
     * @return whether to use directory leasing for caching
     */
    boolean isUseDirectoryLeasing();

    /**
     * Property {@code jcifs.smb.client.directoryCacheScope} (String, default "IMMEDIATE_CHILDREN")
     *
     * @return directory cache scope (IMMEDIATE_CHILDREN, RECURSIVE_TREE, METADATA_ONLY, FULL_ENUMERATION)
     */
    String getDirectoryCacheScope();

    /**