```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []
}
```

FastAPI est suffisamment intelligent (en fait, Pydantic l’est) pour comprendre que, même si `description`, `tax` et `tags` ont les mêmes valeurs que les valeurs par défaut, elles ont été définies explicitement (au lieu d'être prises depuis les valeurs par défaut).

			wantSelected: &inputSerialized[2],
			wantOk:       true,
		},
		{
			// inputSerialized[1] have older versions of the second in inputSerialized[2], but
			// since it is not strict, we should get it that one (with latest modtime)
			name:         "modtimemismatch,not strict",
			m:            metaCacheEntries{inputSerialized[1], inputSerialized[1], inputSerialized[2], inputSerialized[2]},

* Unmount operation should not fail if volume is already unmounted ([#38547](https://github.com/kubernetes/kubernetes/pull/38547), [@rkouj](https://github.com/rkouj))
* Updates base image used for `kube-addon-manager` to latest `python:2.7-slim` and embedded `kubectl` to `v1.3.10`. No functionality changes expected. ([#42842](https://github.com/kubernetes/kubernetes/pull/42842), [@ixdy](https://github.com/ixdy))

* - kubeadm now supports "ci/latest-1.8" or "ci-cross/latest-1.8" and similar labels. ([#49119](https://github.com/kubernetes/kubernetes/pull/49119), [@kad](https://github.com/kad))

 * ...
 * }
 *
 * <h3>Views</h3>
 *
 * <p>Much of the power of the multimap API comes from the <i>view collections</i> it provides.
 * These always reflect the latest state of the multimap itself. When they support modification, the
 * changes are <i>write-through</i> (they automatically update the backing multimap). These view
 * collections are:
 *
 * <ul>

この部分はとても普通で、ほとんどのコードはすでに見覚えがあるはずです:

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[7:11,34:51] *}

/// tip | 豆知識

`callback_url` クエリパラメータは、Pydantic の [Url](https://docs.pydantic.dev/latest/api/networks/) 型を使用します。

///

唯一の新しい点は、*path operation デコレータ*の引数として `callbacks=invoices_callback_router.routes` を渡すことです。これが何かは次で見ます。

## コールバックのドキュメント化 { #documenting-the-callback }

重要的是，通过使用标准的 Python 类型，而且只在一个地方声明（而不是添加更多类、装饰器等），**FastAPI** 会为你完成大量工作。

/// info | 信息

如果你已经读完所有教程，又回来想进一步了解类型，一个不错的资源是 [`mypy` 的“速查表”](https://mypy.readthedocs.io/en/latest/cheat_sheet_py3.html)。

        }

        /** Domain NetBIOS name. */
        public rpc.unicode_string name;
        /** DNS domain name. */
        public rpc.unicode_string dns_domain;
        /** DNS forest name. */
        public rpc.unicode_string dns_forest;
        /** Domain GUID. */
        public rpc.uuid_t domain_guid;
        /** Domain security identifier. */
        public rpc.sid_t sid;

///

If you are using `pip` to install packages (it comes by default with Python), you should **upgrade** it to the latest version.

Many exotic errors while installing a package are solved by just upgrading `pip` first.

/// tip

You would normally do this **once**, right after you create the virtual environment.

///

## 같은 router를 다른 `prefix`로 여러 번 포함하기 { #include-the-same-router-multiple-times-with-different-prefix }

`.include_router()`를 사용해 *같은* router를 서로 다른 prefix로 여러 번 포함할 수도 있습니다.

예를 들어 `/api/v1`과 `/api/latest`처럼 서로 다른 prefix로 동일한 API를 노출할 때 유용할 수 있습니다.

이는 고급 사용 방식이라 실제로 필요하지 않을 수도 있지만, 필요할 때를 위해 제공됩니다.

## `APIRouter`에 다른 `APIRouter` 포함하기 { #include-an-apirouter-in-another }