!!! note "Remarque"
    `JSONResponse` est elle-même une sous-classe de `Response`.

Et quand vous retournez une `Response`, **FastAPI** la transmet directement.

Elle ne fera aucune conversion de données avec les modèles Pydantic, elle ne convertira pas le contenu en un type quelconque.

  // Default to false.
  // +k8s:conversion-gen=false
  // +optional
  optional bool hostNetwork = 11;

  // Use the host's pid namespace.
  // Optional: Default to false.
  // +k8s:conversion-gen=false
  // +optional
  optional bool hostPID = 12;

  // Use the host's ipc namespace.
  // Optional: Default to false.
  // +k8s:conversion-gen=false
  // +optional
  optional bool hostIPC = 13;

  // RequestKind is the fully-qualified type of the original API request (for example, v1.Pod or autoscaling.v1.Scale).
  // If this is specified and differs from the value in "kind", an equivalent match and conversion was performed.
  //
  // For example, if deployments can be modified via apps/v1 and apps/v1beta1, and a webhook registered a rule of

 * type</i> of function is expected, use the method reference {@code function::apply}. A future
 * version of {@code com.google.common.base.Function} will be made to <i>extend</i> {@code
 * java.util.function.Function}, making conversion code necessary only in one direction. At that
 * time, this interface will be officially discouraged.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

    }

    override fun asKtType(
        psiType: PsiType,
        useSitePosition: PsiElement,
    ): KtType? {
        throw UnsupportedOperationException("Conversion to KtType is not supported in K1 implementation")
    }
}

  // RequestKind is the fully-qualified type of the original API request (for example, v1.Pod or autoscaling.v1.Scale).
  // If this is specified and differs from the value in "kind", an equivalent match and conversion was performed.
  //
  // For example, if deployments can be modified via apps/v1 and apps/v1beta1, and a webhook registered a rule of

// your external MyAPIObject. That causes the raw JSON to be stored, but not unpacked.
// The next step is to copy (using pkg/conversion) into the internal struct. The runtime
// package's DefaultScheme has conversion functions installed which will unpack the
// JSON stored in RawExtension, turning it into the correct object type, and storing it

* `int`
* `float`
* `str`
* `bool`

But you can also use more complex data types.

And you will still have the same features as seen up to now:

* Great editor support.
* Data conversion from incoming requests.
* Data conversion for response data.
* Data validation.
* Automatic annotation and documentation.

## Other data types

Here are some of the additional data types you can use:

* `UUID`:

        "name": "The Foo live"
    }
}
```

Again, doing just that declaration, with **FastAPI** you get:

* Editor support (completion, etc.), even for nested models
* Data conversion
* Data validation
* Automatic documentation

## Special types and validation

Apart from normal singular types like `str`, `int`, `float`, etc. you can use more complex singular types that inherit from `str`.

    que des vérifications d'erreur, de l'auto-complétion, etc.

## <abbr title="aussi appelé sérialisation, ou parfois parsing ou marshalling en anglais">Conversion</abbr> de données

Si vous exécutez cet exemple et allez sur <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, vous aurez comme réponse :

```JSON
{"item_id":3}