if err != nil {
			return "", err
		}
		return secretKey, nil
	}
	return secret, nil
}

// AssumeRole - implementation of AWS STS API AssumeRole to get temporary
// credentials for regular users on Minio.
// https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html
func (sts *stsAPIHandlers) AssumeRole(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "AssumeRole")

   * an {@code Iterable} is impossible. However, the contents can be <i>copied</i> into a collection
   * using {@link Collections#list}.
   *
   * <p><b>Java 9 users:</b> use {@code enumeration.asIterator()} instead, unless it is important to
   * return an {@code UnmodifiableIterator} instead of a plain {@code Iterator}.
   */

   * <p>Note however that if your escaper does not escape characters in the supplementary range, you
   * should either continue to validate the correctness of any surrogate characters encountered or
   * provide a clear warning to users that your escaper does not validate its input.
   *
   * <p>See {@link com.google.common.net.PercentEscaper} for an example.
   *
   * @param csq a sequence of characters

-Djava.awt.headless=true -D$java.rmi.server.hostname=127.0.0.1 -Xmx1024m -XX:MaxMetaspaceSize=512m -Dkotlin.environment.keepalive -ea --add-exports java.base/sun.nio.ch=ALL-UNNAMED org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\\Users\\tcagent1\\AppData\\Local\\kotlin\\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath C:\\tcagent1\\work\\f63322e10dd6b396\\intTestHomeDir\\distributions-full\\caches\\modules-2\\files-2.1\\org.jetbrains.kotlin\\kotlin-compile...

响应(response)对象也拥有自动补全:

<img src="/img/tutorial/generate-clients/image05.png">

## 带有标签的 FastAPI 应用

在许多情况下，你的FastAPI应用程序会更复杂，你可能会使用标签来分隔不同组的*路径操作(path operations)*。

例如，您可以有一个用 `items` 的部分和另一个用于 `users` 的部分，它们可以用标签来分隔：

{* ../../docs_src/generate_clients/tutorial002_py39.py hl[21,26,34] *}

### 生成带有标签的 TypeScript 客户端

如果您使用标签为FastAPI应用生成客户端，它通常也会根据标签分割客户端代码。

通过这种方式，您将能够为客户端代码进行正确地排序和分组：

import org.jspecify.annotations.Nullable;

/**
 * A reference queue with an associated background thread that dequeues references and invokes
 * {@link FinalizableReference#finalizeReferent()} on them. Java 9+ users should prefer {@link
 * java.lang.ref.Cleaner Cleaner}; see example <a href="#cleaner">below</a>.
 *
 * <p>Keep a strong reference to this object until all of the associated referents have been

the originator of the Contribution.

   4. COMMERCIAL DISTRIBUTION

Commercial distributors of software may accept certain responsibilities with
respect to end users, business partners and the like. While this license is
intended to facilitate the commercial use of the Program, the Contributor
who includes the Program in a commercial product offering should do so in

        // That's right lets just let it rip right here and send a big incomprehensible blob of text at unsuspecting
        // users. Bad dog!

        resolutionErrorHandler.throwErrors(request, result);

        return result;
    }

    // ------------------------------------------------------------------------
    //

     * before releaseResources could be called (because we have not yet set up any of the listeners
     * that could call it, nor exposed this Future for users to call cancel() on).
     */
    requireNonNull(futures);

    // Corner case: List is empty.
    if (futures.isEmpty()) {
      handleAllCompleted();
      return;
    }

使用如下凭证：

用户名: `johndoe` 密码: `secret`

/// check | 检查

注意，代码中没有明文密码**`secret`**，只保存了它的哈希值。

///

<img src="https://fastapi.tiangolo.com/img/tutorial/security/image08.png">

调用 `/users/me/` 端点，收到下面的响应：

```JSON
{
  "username": "johndoe",
  "email": "******@****.***",
  "full_name": "John Doe",
  "disabled": false
}
```