```Python hl_lines="6"
{!../../docs_src/events/tutorial002.py!}
```

Aqui, a função de manipulação de evento `shutdown` irá escrever uma linha de texto `"Application shutdown"` no arquivo `log.txt`.

/// info | "Informação"

      for (int direction : new int[] {1, -1}) {
        double d = Double.longBitsToDouble(Double.doubleToLongBits(Math.scalb(1.0, i)) + direction);
        // Math.nextUp/nextDown
        if (d != Math.rint(d)) {
          fractionalBuilder.add(d);
        }
      }
    }
    for (double d :
        Doubles.asList(
            0,
            1,
            2,

      for (int direction : new int[] {1, -1}) {
        double d = Double.longBitsToDouble(Double.doubleToLongBits(Math.scalb(1.0, i)) + direction);
        // Math.nextUp/nextDown
        if (d != Math.rint(d)) {
          fractionalBuilder.add(d);
        }
      }
    }
    for (double d :
        Doubles.asList(
            0,
            1,
            2,

	}
	return etag, nil
}

// Parse parses s as an S3 ETag, returning the result.
// The string can be an encrypted, singlepart
// or multipart S3 ETag. It returns an error if s is
// not a valid textual representation of an ETag.
func Parse(s string) (ETag, error) {
	const strict = false
	return parse(s, strict)
}

// parse parse s as an S3 ETag, returning the result.
// It operates in one of two modes:

        return (cmpXToRoundArbitrarily <= 0) ? roundArbitrarily : Math.nextUp(roundArbitrarily);
      case DOWN:
        if (x >= 0) {
          return (cmpXToRoundArbitrarily >= 0)
              ? roundArbitrarily
              : DoubleUtils.nextDown(roundArbitrarily);
        } else {
          return (cmpXToRoundArbitrarily <= 0) ? roundArbitrarily : Math.nextUp(roundArbitrarily);
        }
      case UP:

    //                                                                           Attribute
    //                                                                           =========
    // keeping parsed request parameters, normal texts or uploaded files
    // keys are requested parameter names (treated as field name here)
    protected Map<String, Object> elementsAll; // lazy-loaded, then after not null

* Be careful when using features introduced in Java 1.7 or later. Some parts of Gradle still need to run on Java 6.
* Normalize file paths in tests. The `org.gradle.util.internal.TextUtil` class has some useful functions for this purpose.

You can consult the [Architecture documentation](architecture) to learn about some of the architecture of Gradle.

### Contributing to documentation

En déclarant les types de vos variables, cela permet aux différents outils comme les éditeurs de texte d'offrir un meilleur support.

Ce chapitre n'est qu'un **tutoriel rapide / rappel** sur les annotations de type Python.
Seulement le minimum nécessaire pour les utiliser avec **FastAPI** sera couvert... ce qui est en réalité très peu.

///

As dependências continuarão funcionando como esperado, e a **melhor parte** é que a **informação sobre o tipo é preservada**, o que signfica que seu editor de texto ainda irá incluir **preenchimento automático**, **visualização de erros**, etc. O mesmo vale para ferramentas como `mypy`.

* <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank"><strong>Swagger UI</strong></a>, z interaktywnym interfejsem - odpytuj i testuj swoje API bezpośrednio z przeglądarki.

![Swagger UI interakcja](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)