* データ変換
* データの検証
* 自動文書化

## 特殊な型とバリデーション

`str`や`int`、`float`のような通常の単数型の他にも、`str`を継承したより複雑な単数型を使うこともできます。

すべてのオプションをみるには、<a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydanticのエキゾチック な型</a>のドキュメントを確認してください。次の章でいくつかの例をみることができます。

例えば、`Image`モデルのように`url`フィールドがある場合、`str`の代わりにPydanticの`HttpUrl`を指定することができます:

{* ../../docs_src/body_nested_models/tutorial005.py hl[4,10] *}

    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "externalDocs": {
            "description": "External API documentation.",
            "url": "https://docs.example.com/api-general",
        },
        "paths": {
            "/api_route": {
                "get": {
                    "responses": {

  - [Notable Changes to Existing Behavior](#notable-changes-to-existing-behavior)
  - [Deprecations](#deprecations)
  - [Action Required Before Upgrading](#action-required-before-upgrading)
  - [External Dependency Version Information](#external-dependency-version-information)
  - [Changelog since v1.5.0-beta.3](#changelog-since-v150-beta3)
    - [Other notable changes](#other-notable-changes-7)

    - [Cluster Load Balancing](#cluster-load-balancing)
    - [etcd Empty Dir Cleanup](#etcd-empty-dir-cleanup)
    - [Fluentd](#fluentd)
    - [Heapster](#heapster)
    - [Registry](#registry)
  - [External Dependency Version Information](#external-dependency-version-information)
  - [Changelog since v1.6.0-rc.1](#changelog-since-v160-rc1)
    - [Previous Releases Included in v1.6.0](#previous-releases-included-in-v160)
- [v1.6.0-rc.1](#v160-rc1)

{* ../../docs_src/query_params_str_validations/tutorial006.py hl[7] *}

/// info | 情報

これまで`...`を見たことがない方へ: これは特殊な単一値です。<a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">Pythonの一部であり、"Ellipsis"と呼ばれています</a>。

///

これは **FastAPI** にこのパラメータが必須であることを知らせます。

## クエリパラメータのリスト / 複数の値

クエリパラメータを明示的に`Query`で宣言した場合、値のリストを受け取るように宣言したり、複数の値を受け取るように宣言したりすることもできます。

 * control over lock behavior to individual components.
 *
 * <p>Applications are encouraged to use a {@code CycleDetectingLockFactory} to create any locks for
 * which external/unmanaged code is executed while the lock is held. (See caveats under
 * <strong>Performance</strong>).
 *
 * <p><strong>Cycle Detection</strong>
 *

    - [Network](#network)
    - [Node](#node)
    - [Scheduling](#scheduling)
    - [Storage](#storage)
    - [Testing](#testing)
    - [VMware](#vmware)
    - [Windows](#windows)
  - [External Dependencies](#external-dependencies)
- [v1.14.0-rc.1](#v1140-rc1)
  - [Downloads for v1.14.0-rc.1](#downloads-for-v1140-rc1)
    - [Client Binaries](#client-binaries-11)
    - [Server Binaries](#server-binaries-11)

- The in-tree cloud provider for Azure has now been removed. Please use the external cloud provider and CSI driver from https://github.com/kubernetes/cloud-provider-azure instead. ([#122857](https://github.com/kubernetes/kubernetes/pull/122857), [@nilo19](https://github.com/nilo19))

- [cloud-provider] Respected the `exclude-from-external-load-balancers=false` label. ([#131085](https://github.com/kubernetes/kubernetes/pull/131085), [@kayrus](https://github.com/kayrus)) [SIG Cloud Provider and Network]

### API Change

 * {@link TypeToken#resolveType} since it's simpler and more type safe. This class should only be
 * used when the type mapping isn't implied by the static type hierarchy, but provided through other
 * means such as an annotation or external configuration file.
 *
 * @author Ben Yu
 * @since 15.0
 */
public final class TypeResolver {

  private final TypeTable typeTable;

  public TypeResolver() {
    this.typeTable = new TypeTable();
  }