mIntegerToSpanish.put(1, "Uno");
    mIntegerToSpanish.put(3, "Tres");
    mIntegerToSpanish.put(4, "Cuatro");
    Function<Integer, String> integerToSpanish = Functions.forMap(mIntegerToSpanish);

    Function<String, String> japaneseToSpanish =
        Functions.compose(integerToSpanish, japaneseToInteger);

    assertThat(japaneseToSpanish.apply("Ichi")).isEqualTo("Uno");

{* ../../docs_src/server_sent_events/tutorial003_py310.py hl[17] *}

/// note | Nota

`data` y `raw_data` son mutuamente excluyentes. Solo puedes establecer uno de ellos en cada `ServerSentEvent`.

///

## Reanudar con `Last-Event-ID` { #resuming-with-last-event-id }

///

## Utilidades de **FastAPI** { #fastapi-utilities }

FastAPI proporciona varias herramientas para cada uno de estos esquemas de seguridad en el módulo `fastapi.security` que simplifican el uso de estos mecanismos de seguridad.

    end
```

/// info | Información

Solo **un response** será enviado al cliente. Podría ser uno de los responses de error o será el response de la *path operation*.

Después de que se envíe uno de esos responses, no se podrá enviar ningún otro response.

///

/// tip | Consejo

        # possibly modified.
        #
        # NB: a `for` loop captures its iteration list before it begins, so
        # changing the positional parameters here affects neither the number of
        # iterations, nor the values presented in `arg`.
        shift                   # remove old arg
        set -- "$@" "$arg"      # push replacement arg
    done
fi

   * be declared as a {@code List}.
   *
   * <p>Note also that serialization is not in general required to return an object that is
   * {@linkplain Object#equals equal} to the original, nor is it required to return even an object
   * of the same class. For example, if sublists of {@code MyList} instances were serializable,
   * those sublists might implement a private {@code MySubList} type but serialize as a plain {@code

    return false;
  }

  // Prevent "missing hashCode" warning by explicitly forcing subclasses implement it
  @Override
  public abstract int hashCode();

  /*
   * The implementation neither produces nor consumes any non-null instance of type C, so
   * casting the type parameter is safe.
   */
  @SuppressWarnings("unchecked")
  static <C extends Comparable> Cut<C> belowAll() {
    return (Cut<C>) BelowAll.INSTANCE;

    }

    def "nothing should be reported if no changes"() {
        expect:
        noViolation(rule)
    }

    def "nothing should be reported if new interface is neither internal nor incubating"() {
        when:
        newBase.addInterface(stablePublicInterface)

        then:
        noViolation(rule)
    }

    def 'adding an #type interface can be reported'() {
        given:

When using a `response_model` or return type, FastAPI won't use the `jsonable_encoder` to convert the data (which would be slower) nor the `JSONResponse` class.

Instead it takes the JSON bytes generated with Pydantic using the response model (or return type) and returns a `Response` with the right media type for JSON directly (`application/json`).

    return false;
  }

  // Prevent "missing hashCode" warning by explicitly forcing subclasses implement it
  @Override
  public abstract int hashCode();

  /*
   * The implementation neither produces nor consumes any non-null instance of type C, so
   * casting the type parameter is safe.
   */
  @SuppressWarnings("unchecked")
  static <C extends Comparable> Cut<C> belowAll() {
    return (Cut<C>) BelowAll.INSTANCE;