///

## 在 `q` 参数的类型中使用 `Annotated` { #use-annotated-in-the-type-for-the-q-parameter }

还记得我之前在[Python 类型简介](../python-types.md#type-hints-with-metadata-annotations)中说过可以用 `Annotated` 给参数添加元数据吗？

现在正是与 FastAPI 搭配使用它的时候。🚀

我们之前的类型标注是：

```Python
q: str | None = None
```

我们要做的是用 `Annotated` 把它包起来，变成：

```Python

## Changelog since v1.3.3

### Other notable changes

* NetworkPolicy cherry-pick 1.3 ([#29556](https://github.com/kubernetes/kubernetes/pull/29556), [@caseydavenport](https://github.com/caseydavenport))
* Allow mounts to run in parallel for non-attachable volumes ([#28939](https://github.com/kubernetes/kubernetes/pull/28939), [@saad-ali](https://github.com/saad-ali))

	_, err = findColumnType(&RelationModel2{}, "id")
	if err == nil {
		t.Errorf("RelationModel2 should not be migrated")
	}
}

func TestMigrateView(t *testing.T) {
	DB.Save(GetUser("joins-args-db", Config{Pets: 2}))

	if err := DB.Migrator().CreateView("invalid_users_pets",
		gorm.ViewOption{Query: nil}); err != gorm.ErrSubQueryRequired {
		t.Fatalf("no view should be created, got %v", err)
	}

var a, b int

func f() {
	a = 1
	b = 2
}

func g() {
	print(b)
	print(a)
}

func main() {
	go f()
	g()
}
</pre>

<p>
it can happen that <code>g</code> prints <code>2</code> and then <code>0</code>.
</p>

<p>
This fact invalidates a few common idioms.
</p>

<p>
Double-checked locking is an attempt to avoid the overhead of synchronization.

  This section can be blank if this pull request does not require a release note.
  
  When adding links which point to resources within git repositories, like
  KEPs or supporting documentation, please reference a specific commit and avoid
  linking directly to the master branch. This ensures that links reference a
  specific point in time, rather than a document that may change over time.
  

   * single element: that file.
   *
   * <p>Example: {@code Files.fileTraverser().depthFirstPreOrder(new File("/"))} may return files
   * with the following paths: {@code ["/", "/etc", "/etc/config.txt", "/etc/fonts", "/home",
   * "/home/alice", ...]}
   *
   * @since 23.5
   */
  public static Traverser<File> fileTraverser() {
    return Traverser.forTree(FILE_TREE);
  }

Alternately, you can provide a YAML file that specifies parameter values while installing the chart. For example, ```bash helm install --name my-release -f values.yaml minio/minio ``` Persistence ---------- This chart provisions a PersistentVolumeClai and mounts corresponding persistent volume to default location `/export`. You'll need physical storage available in the Kubernetes cluster for this to work. If you'd rather use `emptyDir`, disable PersistentVolumeClai by: ```bash helm install --set persistence.enabled=false...

**Affected Versions**:
  - kube-apiserver v1.31.0 - v1.31.11
  - kube-apiserver v1.32.0 - v1.32.7
  - kube-apiserver v1.33.0 - v1.33.3

**Fixed Versions**:
  - kube-apiserver v1.31.12

///

## `q` パラメータの型で `Annotated` を使う { #use-annotated-in-the-type-for-the-q-parameter }

以前、[Python Types Intro](../python-types.md#type-hints-with-metadata-annotations) で `Annotated` を使ってパラメータにメタデータを追加できると説明したことを覚えていますか？

いよいよ FastAPI で使うときです。 🚀

次の型アノテーションがありました:

```Python
q: str | None = None
```

これを `Annotated` で包んで、次のようにします:

Alternately, you can provide a YAML file that specifies parameter values while installing the chart. For example, ```bash helm install --name my-release -f values.yaml minio/minio ``` Persistence ---------- This chart provisions a PersistentVolumeClai and mounts corresponding persistent volume to default location `/export`. You'll need physical storage available in the Kubernetes cluster for this to work. If you'd rather use `emptyDir`, disable PersistentVolumeClai by: ```bash helm install --set persistence.enabled=false...