*/
    @Override
    public List<FileNotifyInformation> watch () throws CIFSException {
        if ( !this.handle.isValid() ) {
            throw new SmbException("Watch was broken by tree disconnect");
        }
        try ( SmbTreeHandleImpl th = this.handle.getTree() ) {

            CommonServerMessageBlockRequest req;
            NotifyResponse resp = null;
            if ( th.isSMB2() ) {

	biggerBufMax = maxBufferSize

	// If there is a queue, merge up to this many messages.
	maxMergeMessages = 30

	// clientPingInterval will ping the remote handler every 15 seconds.
	// Clients disconnect when we exceed 2 intervals.
	clientPingInterval = 15 * time.Second

	// Deadline for single (non-streaming) requests to complete.
	// Used if no deadline is provided on context.
	defaultSingleRequestTimeout = time.Minute

public abstract class SmbComTransactionResponse extends ServerMessageBlock implements Enumeration<SmbComTransactionResponse> {

    // relative to headerStart
    static final int SETUP_OFFSET = 61;

    static final int DISCONNECT_TID = 0x01;
    static final int ONE_WAY_TRANSACTION = 0x02;

    private int pad;
    private int pad1;
    private boolean parametersDone, dataDone;

    protected int totalParameterCount;

abstract class SmbComTransactionResponse extends ServerMessageBlock implements Enumeration {

    // relative to headerStart
    private static final int SETUP_OFFSET        = 61;

    private static final int DISCONNECT_TID      = 0x01;
    private static final int ONE_WAY_TRANSACTION = 0x02;

    private int pad;
    private int pad1;
    private boolean parametersDone, dataDone;

    protected int totalParameterCount;

            this.connections.clear();
            this.nonPooledConnections.clear();
        }
        for ( SmbTransportImpl conn : toClose ) {
            try {
                inUse |= conn.disconnect(false, false);
            }
            catch ( IOException e ) {
                log.warn("Failed to close connection", e);
            }
        }
        synchronized ( this.connections ) {

                try ( SmbTransportInternal transport = session.getTransport().unwrap(SmbTransportInternal.class) ) {
                    assertNotNull(transport);
                    transport.disconnect(true, true);
                    assertNotNull(f);
                    checkConnection(f);
                    f.exists();
                }
            }
        }
        catch ( Exception e ) {

    // relative to headerStart
    private static final int PRIMARY_SETUP_OFFSET        = 61;
    private static final int SECONDARY_PARAMETER_OFFSET  = 51;

    private static final int DISCONNECT_TID      = 0x01;
    private static final int ONE_WAY_TRANSACTION = 0x02;

    private static final int PADDING_SIZE = 2;

    private int flags = 0x00;
    private int fid;
    private int pad = 0;

    // relative to headerStart
    private static final int PRIMARY_SETUP_OFFSET = 61;
    private static final int SECONDARY_PARAMETER_OFFSET = 51;

    static final int DISCONNECT_TID = 0x01;
    static final int ONE_WAY_TRANSACTION = 0x02;

    static final int PADDING_SIZE = 4;

    private int tflags = 0x00;
    private int pad1 = 0;
    private int pad2 = 0;

    public String getResponseMessage () throws IOException {
        handshake();
        return this.connection.getResponseMessage();
    }


    @Override
    public void disconnect () {
        this.connection.disconnect();
        this.handshakeComplete = false;
        this.connected = false;
    }


    @Override
    public boolean usingProxy () {
        return this.connection.usingProxy();

```Python hl_lines="39-41"
{!../../../docs_src/custom_docs_ui/tutorial002.py!}
```

### Test Static Files UI

Now, you should be able to disconnect your WiFi, go to your docs at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>, and reload the page.