Com `Form` você pode declarar os mesmos metadados e validação que com `Body` (e `Query`, `Path`, `Cookie`).

/// info | "Informação"

`Form` é uma classe que herda diretamente de `Body`.

///

/// tip | "Dica"

///

## Использование `example` и `examples` в OpenAPI

При использовании любой из этих функций:

* `Path()`
* `Query()`
* `Header()`
* `Cookie()`
* `Body()`
* `Form()`
* `File()`

вы также можете добавить аргумент, содержащий `example` или группу `examples` с дополнительной информацией, которая будет добавлена в **OpenAPI**.

   * followed by a newline character `\n`.
   *
   * Since OkHttp 5 this redacts these sensitive headers:
   *
   *  * `Authorization`
   *  * `Cookie`
   *  * `Proxy-Authorization`
   *  * `Set-Cookie`
   */
  override fun toString(): String = commonToString()

  fun toMultimap(): Map<String, List<String>> {

                It is also useful when you want to have authentication that can be
                provided in one of multiple optional ways (for example, in an HTTP
                Bearer token or in a cookie).
                """
            ),
        ] = True,
    ):
        self.model = HTTPBearerModel(bearerFormat=bearerFormat, description=description)

```Python hl_lines="4  10-13"
{!> ../../docs_src/schema_extra_example/tutorial002.py!}
```

////

## JSON Schema에서의 `examples` - OpenAPI

이들 중에서 사용합니다:

* `Path()`
* `Query()`
* `Header()`
* `Cookie()`
* `Body()`
* `Form()`
* `File()`

**OpenAPI**의 **JSON 스키마**에 추가될 부가적인 정보를 포함한 `examples` 모음을 선언할 수 있습니다.

### `examples`를 포함한 `Body`

여기, `Body()`에 예상되는 예제 데이터 하나를 포함한 `examples`를 넘겼습니다:

   * {@code co.uk}, {@code google.invalid}, or {@code blogspot.com}.
   *
   * <p>This method can be used to determine whether it will probably be possible to set cookies on
   * the domain, though even that depends on individual browsers' implementations of cookie
   * controls. See <a href="http://www.ietf.org/rfc/rfc2109.txt">RFC 2109</a> for details.
   *
   * @since 6.0
   */
  public boolean isUnderPublicSuffix() {

```

例如，OAuth2 规范的 "密码流" 模式规定要通过表单字段发送 `username` 和 `password`。

<abbr title="specification">该规范</abbr>要求字段必须命名为 `username` 和 `password`，并通过表单字段发送，不能用 JSON。

使用 `Form` 可以声明与 `Body` （及 `Query`、`Path`、`Cookie`）相同的元数据和验证。

/// info | "说明"

`Form` 是直接继承自 `Body` 的类。

///

/// tip | "提示"

声明表单体要显式使用 `Form` ，否则，FastAPI 会把该参数当作查询参数或请求体（JSON）参数。

///

## 关于 "表单字段"

including `Content-Length`, `Transfer-Encoding`, `User-Agent`, `Host`, `Connection`, and `Content-Type`. It will add an `Accept-Encoding` header for transparent response compression unless the header is already present. If you’ve got cookies, OkHttp will add a `Cookie` header with them.

Some requests will have a cached response. When this cached response isn’t fresh, OkHttp can do a _conditional GET_ to download an updated response if it’s newer than what’s cached. This requires headers like...

With `Form` you can declare the same configurations as with `Body` (and `Query`, `Path`, `Cookie`), including validation, examples, an alias (e.g. `user-name` instead of `username`), etc.

/// info

`Form` is a class that inherits directly from `Body`.

///

/// tip

   */
  public static final String SERVICE_WORKER_ALLOWED = "Service-Worker-Allowed";
  /** The HTTP {@code Set-Cookie} header field name. */
  public static final String SET_COOKIE = "Set-Cookie";
  /** The HTTP {@code Set-Cookie2} header field name. */
  public static final String SET_COOKIE2 = "Set-Cookie2";

  /**
   * The HTTP <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/SourceMap">{@code