おそらくコードの中で直接使用する必要はないでしょう。

しかし、高度なシナリオのために必要な場合には、カスタムヘッダーを追加することができます:

{* ../../docs_src/handling_errors/tutorial002.py hl[14] *}

## カスタム例外ハンドラのインストール

カスタム例外ハンドラは<a href="https://www.starlette.dev/exceptions/" class="external-link" target="_blank">Starletteと同じ例外ユーティリティ</a>を使用して追加することができます。

あなた（または使用しているライブラリ）が`raise`するかもしれないカスタム例外`UnicornException`があるとしましょう。

そして、この例外をFastAPIでグローバルに処理したいと思います。

If you have a different use case that needs to exit early from a dependency with `yield`, please create a <a href="https://github.com/fastapi/fastapi/discussions/new?category=questions" class="external-link" target="_blank">GitHub Discussion Question</a> with your specific use case and why you would benefit from having early closing for dependencies with `yield`.

* 数据转换
* 数据校验
* 自动生成文档

## 特殊的类型和校验

除了普通的单一值类型（如 `str`、`int`、`float` 等）外，你还可以使用从 `str` 继承的更复杂的单一值类型。

要了解所有的可用选项，请查看关于 <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">来自 Pydantic 的外部类型</a> 的文档。你将在下一章节中看到一些示例。

例如，在 `Image` 模型中我们有一个 `url` 字段，我们可以把它声明为 Pydantic 的 `HttpUrl`，而不是 `str`：

{* ../../docs_src/body_nested_models/tutorial005_py310.py hl[2,8] *}

information about how conventions are calculated or what they could be.  In the wild, we've seen some objects set conventions in the object's constructor (3), but this can lead to unexpected assumptions or coupling between plugins.

For external plugins, it's difficult for an object to be used outside the application of a plugin, so following best practices is relatively straightforward.  For core plugins in gradle/gradle, it's easy for an object to be created without applying its associated...

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            A repository id or an expression matching one or many repository ids to mirror, e.g.,
            <code>central</code> or <code>*,!repo1</code>.
            <code>*</code>, <code>external:*</code> and <code>external:http:*</code> (since Maven 3.8.0) have
            a special meaning: see <a href="/guides/mini/guide-mirror-settings.html">Mirror Settings</a> guide.
            ]]>
          </description>

    scheme == other.scheme

internal fun EventListener.asFactory() = EventListener.Factory { this }

/**
 * Reads until this is exhausted or the deadline has been reached. This is careful to not extend the
 * deadline if one exists already.
 */
@Throws(IOException::class)
internal fun Source.skipAll(
  duration: Int,
  timeUnit: TimeUnit,
): Boolean {
  val nowNs = System.nanoTime()

        collection = mapEntry.getValue();
        valueIterator = collection.iterator();
      }
      /*
       * uncheckedCastNullableTToT is safe: The first call to this method always enters the !hasNext() case and
       * populates key, after which it's never cleared.
       */
      return output(uncheckedCastNullableTToT(key), valueIterator.next());
    }

    @Override

   * which contained the following notice:
   *
   * Written by Doug Lea with assistance from members of JCP JSR-166 Expert Group and released to
   * the public domain, as explained at http://creativecommons.org/publicdomain/zero/1.0/
   *
   * Other contributors include Andrew Wright, Jeffrey Hayes, Pat Fisher, Mike Judd.
   */

  /**

{{- if eq .Values.service.type "LoadBalancer" }} MinIO can be accessed via port {{ .Values.service.port }} on an external IP address. Get the service external IP address by: kubectl get svc --namespace {{ .Release.Namespace }} -l app={{ template "minio.fullname" . }} Note that the public IP may take a couple of minutes to be available. You can now access MinIO server on http://<External-IP>:9000. Follow the below steps to connect to MinIO server with mc client: 1. Download the MinIO mc client - h...

 *     sha256/grX4Ta9HpZx6tSHkmCrvpApTQGo67CYDnvprLg5yRME=: CN=COMODO RSA Certification Authority
 *     sha256/lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=: CN=AddTrust External CA Root
 * Pinned certificates for publicobject.com:
 *     sha256/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
 *   at okhttp3.CertificatePinner.check(CertificatePinner.java)