### Crear una clase `Enum`

Importa `Enum` y crea una subclase que herede de `str` y de `Enum`.

Al heredar de `str`, la documentación de la API podrá saber que los valores deben ser de tipo `string` y podrá representarlos correctamente.

Luego crea atributos de clase con valores fijos, que serán los valores válidos disponibles:

{* ../../docs_src/path_params/tutorial005.py hl[1,6:9] *}

  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.
   */
  static class FakeStopwatch extends SleepingStopwatch {
    long instant = 0L;
    final List<String> events = new ArrayList<>();

    @Override

  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.
   */
  static class FakeStopwatch extends SleepingStopwatch {
    long instant = 0L;
    final List<String> events = new ArrayList<>();

    @Override

El `response_class` solo se usará para documentar el OpenAPI *path operation*, pero tu `Response` se usará tal cual.

#### Devuelve un `HTMLResponse` directamente

Por ejemplo, podría ser algo así:

{* ../../docs_src/custom_response/tutorial004.py hl[7,21,23] *}

En este ejemplo, la función `generate_html_response()` ya genera y devuelve una `Response` en lugar de devolver el HTML en un `str`.

    opt Lanzar otra excepción
        tasks -->> tasks: Manejar excepciones en el código de la tarea en background
    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

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"na", "nas", "neste", "nin", "no", "non", "nos", "nosa", "nosas", "noso", "nosos", "nós", "nun", "nunha", "nuns", "nunhas", "o", "os", "ou", "ó", "ós", "para", "pero", "pode", "pois", "pola", "polas", "polo", "polos", "por", "que", "se", "senón", "ser", "seu", "seus", "sexa", "sido", "sobre", "súa", "súas", "tamén", "tan", "te", "ten", "teñen", "teño", "ter", "teu", "teus", "ti", "tido", "tiña", "tiven", "túa", "túas", "un", "unha", "unhas", "uns", "vos", "vosa", "vosas", "voso", "vosos", "vós"]...

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