}

  public void testRfc2202_hmacSha1_case7() {
    byte[] key = fillByteArray(80, 0xaa);
    String data = "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data";

    checkSha1("e8e99d0f45237d786d6bbaa7965c7808bbff1a91", key, data);
  }

  public void testRfc2202_hmacMd5_case1() {
    byte[] key = fillByteArray(16, 0x0b);
    String data = "Hi There";

    }


    /**
     * Construct a <code>Kerb5Authenticator</code> object with <code>Subject</code>
     * which hold TGT retrieved from KDC. If multiple TGT are contained, the
     * first one will be used to retrieve user principal.
     * 
     * @param subject
     *            represents the user who perform Kerberos authentication.
     *            It contains tickets retrieve from KDC.
     */

   *
   * @param element the element to prepend to the front of {@code array}
   * @param array the array of elements to append
   * @return an array whose size is one larger than {@code array}, with {@code element} occupying
   *     the first position, and the elements of {@code array} occupying the remaining elements.
   */

    // The choice of the size() method to call here is arbitrary.  We assume that if any of the Set
    // methods executes the validation check, they all will, and thus we only need to test one of
    // them to ensure that the validation check happens and has the expected behavior.
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1AdjacentNodes::size));

                    // Add the link to the DOM so that it can be clicked
                    downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
                    downloadLink.style.display = "none";
                    document.body.appendChild(downloadLink);

                    downloadLink.click();
                }
            </script>

Isso não é uma limitação do **FastAPI**, é parte do protocolo HTTP.

///

## Upload de Arquivo Opcional

Você pode tornar um arquivo opcional usando anotações de tipo padrão e definindo um valor padrão de `None`:

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

## `UploadFile` com Metadados Adicionais

Você também pode usar `File()` com `UploadFile`, por exemplo, para definir metadados adicionais:

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Optional[str] = None):
    return {"item_id": item_id, "q": q}
```

* Vous devriez maintenant avoir une structure de répertoire telle que :

```
.
├── app
│   └── main.py
└── Dockerfile
```

```

/// note

- 请注意，您必须直接使用 `FileResponse` 返回图像。

///

/// info

- 除非在 `responses` 参数中明确指定不同的媒体类型，否则**FastAPI**将假定响应与主响应类具有相同的媒体类型（默认为` application/json` ）。
- 但是如果您指定了一个自定义响应类，并将 `None `作为其媒体类型，**FastAPI**将使用 `application/json` 作为具有关联模型的任何其他响应。

///

## 组合信息
您还可以联合接收来自多个位置的响应信息，包括 `response_model `、 `status_code` 和 `responses `参数。

	"Proxy Authentication Required":   http.StatusProxyAuthRequired,
	"Request Timeout":                 http.StatusRequestTimeout,
	"Conflict":                        http.StatusConflict,
	"Gone":                            http.StatusGone,
	"Length Required":                 http.StatusLengthRequired,
	"Precondition Failed":             http.StatusPreconditionFailed,

		id:         event.TargetID{ID: id, Name: "webhook"},
		args:       args,
		loggerOnce: loggerOnce,
		transport:  transport,
		store:      queueStore,
		cancel:     cancel,
		cancelCh:   ctx.Done(),
	}

	// Calculate the webhook addr with the port number format
	target.addr = args.Endpoint.Host