Por ejemplo, vamos a añadir [la extensión OpenAPI de ReDoc para incluir un logo personalizado](https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo).

### **FastAPI** normal { #normal-fastapi }

Primero, escribe toda tu aplicación **FastAPI** como normalmente:

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[1,4,7:9] *}

### Generar el esquema de OpenAPI { #generate-the-openapi-schema }

# Parámetros de Header { #header-parameters }

Puedes definir los parámetros de Header de la misma manera que defines los parámetros de `Query`, `Path` y `Cookie`.

## Importar `Header` { #import-header }

Primero importa `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## Declarar parámetros de `Header` { #declare-header-parameters }

/**
 * Implementation of DBFlute's InvokerAssistant interface for OpenSearch integration.
 * This class provides basic scaffolding for DBFlute behavior invoker assistance,
 * primarily returning null implementations as placeholders for OpenSearch-specific functionality.
 *
 */
public class ImplementedInvokerAssistant implements InvokerAssistant {

     */
    @Nonnull
    InputStream openStream() throws IOException;

    /**
     * Returns a human-readable description of where this source came from,
     * used primarily for error messages and debugging.
     * <p>
     * Examples of locations:
     * <ul>
     *   <li>Absolute file path: {@code /path/to/pom.xml}</li>
     *   <li>Relative file path: {@code ../parent/pom.xml}</li>

 * FutureTask}, {@code ListenableFutureTask} does not provide an overrideable {@link
 * FutureTask#done() done()} method. For similar functionality, call {@link #addListener}.
 *
 * <p>Few users should use this class. It is intended primarily for those who are implementing an
 * {@code ExecutorService}. Most users should call {@link ListeningExecutorService#submit(Callable)
 * ListeningExecutorService.submit} on a service obtained from {@link

The authentication flow is similar to that of OpenID, however the token is "opaque" to MinIO - it is simply sent to the plugin for verification. CAVEAT: There is no console UI integration for this method of authentication and it is intended primarily for machine authentication.

It can be configured via MinIO's standard configuration API (i.e. using `mc admin config set/get`), or equivalently with environment variables. For brevity we show only environment variables here:

        } catch (Throwable t) {
            // In test environments, system monitoring may fail due to missing dependencies
            // or restricted access to system resources. This is acceptable.
            // We primarily want to ensure the method can be called without compilation errors

            // Log the exception for debugging purposes but don't fail the test

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Detalles técnicos { #technical-details }

FastAPI implementa algunas mejores prácticas de SSE desde el primer momento.

        // and that it attempts to create an SmbFile.
        // We cannot directly mock `new SmbFile()`, so we rely on the fact that if it doesn't throw, it's working as expected.

        // This test primarily ensures that the wrapper correctly handles the MalformedURLException
        // and delegates the SmbFile creation.

        // When a valid URL is provided, it should not throw an exception.

## Usando `BackgroundTasks` { #using-backgroundtasks }

Primero, importa `BackgroundTasks` y define un parámetro en tu *path operation function* con una declaración de tipo de `BackgroundTasks`:

{* ../../docs_src/background_tasks/tutorial001_py310.py hl[1,13] *}