// Stats instances:

  static final Stats EMPTY_STATS_VARARGS = Stats.of();
  static final Stats EMPTY_STATS_ITERABLE = Stats.of(ImmutableList.<Double>of());
  static final Stats ONE_VALUE_STATS = Stats.of(ONE_VALUE);
  static final Stats OTHER_ONE_VALUE_STATS = Stats.of(OTHER_ONE_VALUE);
  static final Stats TWO_VALUES_STATS = Stats.of(TWO_VALUES);

         *
         * @param key lease key
         * @param path file path
         * @param state initial lease state
         */
        public LeaseEntry(Smb2LeaseKey key, String path, int state) {
            this.leaseKey = key;
            this.path = path;
            this.leaseState = state;
            this.createTime = System.currentTimeMillis();
            this.lastAccessTime = createTime;

			m.lastHandout = time.Now()

			if m2, err := rpc.UpdateMetacacheListing(ctx, m); err == nil {
				if m2.status != scanStateStarted {
					if serverDebugLog {
						console.Debugln("returning", m.id, "due to scan state", m2.status, time.Now().Format(time.RFC3339))
					}
					return
				}
				m = m2
				if serverDebugLog {
					console.Debugln("refreshed", m.id, time.Now().Format(time.RFC3339))
				}

    }
  }

  private static final class FbosByteSource extends ByteSource {
    final State state;

    FbosByteSource(State state) {
      this.state = state;
    }

    @Override
    public InputStream openStream() throws IOException {
      return state.openInputStream();
    }
  }

  /**
   * Returns a readable {@link ByteSource} view of the data that has been written to this stream.
   *

		}
		if hm.Mem != nil && len(hm.Mem.Info.Addr) > 0 {
			labels := map[string]string{}
			stats := hm.Mem.Info
			updateResourceMetrics(memSubsystem, total, float64(stats.Total), labels, false)
			updateResourceMetrics(memSubsystem, memUsed, float64(stats.Used), labels, false)
			perc := math.Round(float64(stats.Used*100*100)/float64(stats.Total)) / 100

     */
    public boolean isDisconnected() {
        return this.state == 4 || this.state == 5 || this.state == 6 || this.state == 0;
    }

    /**
     * Checks if the transport is in a failed state.
     *
     * @return whether the transport is marked failed
     */
    public boolean isFailed() {
        return this.state == 5 || this.state == 6;
    }

    /**

        // Log all available stats fields for debugging
        logger.info("Available stats fields: {}", res.keySet());

        // Verify response contains meaningful data
        assertNotNull(res, "Stats response should not be null");
        assertTrue(res.size() > 0, "Stats should contain at least some data");

        // Check for common stats fields (these may need to be adjusted based on actual implementation)

  }

  private boolean tryToComputeNext() {
    state = State.FAILED; // temporary pessimism
    next = computeNext();
    if (state != State.DONE) {
      state = State.READY;
      return true;
    }
    return false;
  }

  @CanIgnoreReturnValue // TODO(kak): Should we remove this?
  @Override
  @ParametricNullness
  public final T next() {
    if (!hasNext()) {

    private static List<String> visitAll(
            Collection<Vertex> children, Map<Vertex, DfsState> stateMap, List<String> list) {
        for (Vertex v : children) {
            DfsState state = stateMap.putIfAbsent(v, DfsState.VISITING);
            if (state == null) {
                visitAll(v.children, stateMap, list);
                stateMap.put(v, DfsState.VISITED);
                list.add(v.label);
            }
        }

    public static final String RUNNING = "running";

    /** Status constant representing done/completed state. */
    public static final String DONE = "done";

    /** Status constant representing successful operation. */
    public static final String OK = "ok";

    /** Status constant representing failed operation. */
    public static final String FAIL = "fail";

    /** Status constant representing stopped state. */