You can reuse FastAPI's internal functions to create the HTML pages for the docs, and pass them the needed arguments:

* `openapi_url`: the URL where the HTML page for the docs can get the OpenAPI schema for your API. You can use here the attribute `app.openapi_url`.
* `title`: the title of your API.
* `oauth2_redirect_url`: you can use `app.swagger_ui_oauth2_redirect_url` here to use the default.

    //

    // ===================================================================================
    //                                                                           Attribute
    //

    // ===================================================================================
    //                                                                         Constructor

        super();
    }

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** System properties for dynamic configuration management */
    @Resource
    protected DynamicProperties systemProperties;

    // ===================================================================================
    //                                                                           Attribute
    //

    // ===================================================================================
    //                                                                               Hook

    /**
     * Processes WEB-INF/lib directory and additionally scans WEB-INF/plugin for Fess plugins.
     * This method extends the standard processing to include plugin JAR files that contain
     * the "Fess-WebAppJar" manifest attribute.
     *
     * @throws LifecycleException if an error occurs during processing
     */
    @Override
    protected void processWebInfLib() throws LifecycleException {
        super.processWebInfLib();

Remember that when you import `Query`, `Path`, and others from `fastapi`, those are actually functions that return special classes.

///

/// tip

Notice how each model's attribute with a type, default value and `Field` has the same structure as a *path operation function's* parameter, with `Field` instead of `Path`, `Query` and `Body`.

///

## Add extra information { #add-extra-information }

        super();
    }

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    /** Helper for crawling configuration management. */
    @Resource
    protected CrawlingConfigHelper crawlingConfigHelper;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    @Resource
    protected FessConfig fessConfig;

    private static final long serialVersionUID = 1L;

    // ===================================================================================
    //                                                                           Attribute
    //                                                                           =========
    protected DocMeta docMeta;
    protected final EntityUniqueDrivenProperties __uniqueDrivenProperties = newUniqueDrivenProperties();

    /**
     * Both <code>FILE_NOTIFY_CHANGE_FILE_NAME</code> and <code>FILE_NOTIFY_CHANGE_DIR_NAME</code>
     */
    int FILE_NOTIFY_CHANGE_NAME = 0x00000003;

    /**
     * Any attribute change in the watched directory or subtree causes a change notification wait operation to return.
     */
    int FILE_NOTIFY_CHANGE_ATTRIBUTES = 0x00000004;

    /**