Now, to be able to test that everything works, create a *path operation*:

{* ../../docs_src/custom_docs_ui/tutorial002.py hl[39:41] *}

### 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.

        } catch (IOException e) {
            throw new ChecksumFailedException("Invalid checksum file", e);
        }
    }

    private void disconnectWagon(Wagon wagon) {
        try {
            wagon.disconnect();
        } catch (ConnectionException e) {
            logger.error("Problem disconnecting from wagon - ignoring: " + e.getMessage());
        }
    }