</condition>
	</target>

	<target name="download.dbflute" depends="mydbflute.check" unless="mydbflute.exists">
		<mkdir dir="${mydbflute.dir}" />
		<get dest="${target.dir}/mydbflute.zip">
			<url url="${mydbflute.url}" />
		</get>
		<unzip dest="${mydbflute.dir}" src="${target.dir}/mydbflute.zip">
			<patternset>
				<include name="lastaflute-example-waterfront-${branch.name}/mydbflute/dbflute-1.x/**" />

            }
        }

        return key;
    }

    /**
     * Get raw key bytes
     *
     * @param sessionId unique session identifier
     * @return raw key bytes, or null if not found
     */
    public byte[] getRawKey(String sessionId) {
        checkNotClosed();

        byte[] key = rawKeys.get(sessionId);
        if (key != null) {

                    form.permissions = stream(entity.getPermissions()).get(stream -> stream.map(s -> permissionHelper.decode(s))
                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .collect(Collectors.joining("\n")));
                    form.virtualHosts = stream(entity.getVirtualHosts())

	}

	// Query string.
	queryStr := req.Form.Encode()

	// Get canonical request.
	canonicalRequest := getCanonicalRequest(extractedSignedHeaders, payload, queryStr, req.URL.Path, req.Method)

	// Get string to sign from canonical request.
	stringToSign := getStringToSign(canonicalRequest, date, signV4Values.Credential.getScope())

	// Get hmac signing key.

{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}

`@app.get("/")` сообщает **FastAPI**, что функция прямо под ним отвечает за обработку запросов, поступающих:

* по пути `/`
* с использованием <abbr title="метод HTTP GET"><code>get</code> операции</abbr>

/// info | Информация о `@decorator`

Синтаксис `@something` в Python называется «декоратор».

`@app.get("/")` 告诉 **FastAPI** 在它下方的函数负责处理如下访问请求：

* 请求路径为 `/`
* 使用 <abbr title="HTTP GET 方法"><code>get</code> 操作</abbr>

/// info | `@decorator` Info

`@something` 语法在 Python 中被称为「装饰器」。

像一顶漂亮的装饰帽一样，将它放在一个函数的上方（我猜测这个术语的命名就是这么来的）。

装饰器接收位于其下方的函数并且用它完成一些工作。

在我们的例子中，这个装饰器告诉 **FastAPI** 位于其下方的函数对应着**路径** `/` 加上 `get` **操作**。

它是一个「**路径操作装饰器**」。

///

            });

            // TODO: This breaks the provider
            task.setSourceDir(extension.getUserManual().getStagedDocumentation().get().getAsFile());
            // TODO: This breaks the provider
            task.setOutputDir(extension.getUserManual().getStagingRoot().dir("render-multi").get().getAsFile());

            Map<String, Object> attributes = new HashMap<>();
            attributes.put("icons", "font");

        this.acceptedApiChanges = acceptedApiChanges ? AcceptedApiChanges.fromAcceptedChangesMap(acceptedApiChanges.get()) : [:]

        // Tests will not supply these
        this.mainApiChangesJsonFile = params.get("mainApiChangesJsonFile") ? new File(params.get("mainApiChangesJsonFile") as String) : null

		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
		return
	}

	userProvider := mux.Vars(r)["userProvider"]

	user := r.Form.Get("user")
	tokenRevokeType := r.Form.Get("tokenRevokeType")
	fullRevoke := r.Form.Get("fullRevoke") == "true"
	isTokenSelfRevoke := user == ""
	if !isTokenSelfRevoke {
		var err error
		user, err = getUserWithProvider(ctx, userProvider, user, false)

func getReqAccessKeyV4(r *http.Request, region string, stype serviceType) (auth.Credentials, bool, APIErrorCode) {
	ch, s3Err := parseCredentialHeader("Credential="+r.Form.Get(xhttp.AmzCredential), region, stype)
	if s3Err != ErrNone {
		// Strip off the Algorithm prefix.
		v4Auth := strings.TrimPrefix(r.Header.Get("Authorization"), signV4Algorithm)
		authFields := strings.Split(strings.TrimSpace(v4Auth), ",")
		if len(authFields) != 3 {