你从 *路径操作函数* 中返回的内容将被放在该 `Response` 中。

并且如果该 `Response` 有一个 JSON 媒体类型（`application/json`），比如使用 `JSONResponse` 或者 `UJSONResponse` 的时候，返回的数据将使用你在路径操作装饰器中声明的任何 Pydantic 的 `response_model` 自动转换（和过滤）。

/// note | 说明

如果你使用不带有任何媒体类型的响应类，FastAPI 认为你的响应没有任何内容，所以不会在生成的OpenAPI文档中记录响应格式。

///

## 使用 `ORJSONResponse`

// This implementation of the GET operation returns some or all (up to 1000)
// of the objects in a bucket. You can use the request parameters as selection
// criteria to return a subset of the objects in a bucket.
//
// NOTE: It is recommended that this API to be used for application development.
// MinIO continues to support ListObjectsV1 and V2 for supporting legacy tools.

                SmbTransport trans = null;

                root = root.toLowerCase();

                /* The link entries contain maps of referrals by path representing DFS links.
                 * Note that paths are relative to the root like "\" and not "\example.com\root".
                 */
                CacheEntry links = (CacheEntry) roots.get(root);
                if (links != null && now > links.expiration) {

        assertThrows(SmbException.class, () -> {
            validator.validatePath("\\share\\folder.");
        });
    }

    @Test
    public void testValidUncPath() throws Exception {
        // Note: Due to normalization, all multiple backslashes are reduced to single
        // so \\server\share becomes \server\share
        String path = "\\\\server\\share\\folder";
        String normalized = validator.validatePath(path);

Dessa forma você receberá um erro "limpo", com o HTTP status code `418` e um JSON com o conteúdo:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | Detalhes Técnicos

Você também pode usar `from starlette.requests import Request` e `from starlette.responses import JSONResponse`.

Así que recibirás un error limpio, con un código de estado HTTP de `418` y un contenido JSON de:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | Nota Técnica

También podrías usar `from starlette.requests import Request` y `from starlette.responses import JSONResponse`.

    multiset.add(checkNotNull(elementFunction.apply(t)), countFunction.applyAsInt(t));
  }

  /**
   * Returns the empty immutable sorted multiset.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <E> ImmutableSortedMultiset<E> of() {

     * <ul>
     *     <li>System properties (lowest precedence)</li>
     *     <li>Project properties (optional)</li>
     *     <li>User properties (highest precedence)</li>
     * </ul>
     * Note: Project properties contains properties injected from profiles, if applicable. Their precedence is
     * {@code profile > project}, hence active profile property may override project property.
     * <p>

 *
 * As a stream ID is scoped to a single HTTP/2 connection, implementations which target multiple
 * connections should expect repetition of stream IDs.
 *
 * Return true to request cancellation of a pushed stream.  Note that this does not guarantee
 * future frames won't arrive on the stream ID.
 */
interface PushObserver {
  /**
   * Describes the request that the server intends to push a response for.
   *

Sie können den Defaultwert sowie alle zusätzlichen Validierungs- oder Annotationsparameter definieren:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[9] *}

/// note | Technische Details

`Header` ist eine „Schwester“-Klasse von `Path`, `Query` und `Cookie`. Sie erbt ebenfalls von der gemeinsamen `Param`-Klasse.