*
   * <p><b>Warning to users of Java 8+:</b> do not call any of the new <i>default methods</i> that
   * have been newly added to {@link ConcurrentMap}! These are marked with "Since: 1.8" in the
   * {@code ConcurrentMap} documentation. They will not function correctly and it is impossible for
   * Guava to fix them until Guava is ready to <i>require</i> Java 8 for all users.
   */
  ConcurrentMap<K, V> asMap();

  /**

* `externalDocs`: 외부 문서를 설명하는 `dict`이며:
    * `description`: 외부 문서에 대한 간단한 설명을 담은 `str`입니다.
    * `url` (**필수**): 외부 문서의 URL을 담은 `str`입니다.

### 태그에 대한 메타데이터 생성 { #create-metadata-for-tags }

`users` 및 `items`에 대한 태그 예시로 시도해 보겠습니다.

태그에 대한 메타데이터를 생성하고 이를 `openapi_tags` 매개변수로 전달하세요:

{* ../../docs_src/metadata/tutorial004_py310.py hl[3:16,18] *}

点击小锁图标，注销后，再执行同样的操作，则会得到 HTTP 401 错误：

```JSON
{
  "detail": "Not authenticated"
}
```

### 未激活用户 { #inactive-user }

测试未激活用户，输入以下信息，进行身份验证：

用户名：`alice`

密码：`secret2`

然后，执行 `/users/me` 路径的 `GET` 操作。

显示下列**未激活用户**错误信息：

```JSON
{
  "detail": "Inactive user"
}
```

## 小结 { #recap }

使用本章的工具实现基于 `username` 和 `password` 的完整 API 安全系统。

/**
 * Represents the intent type detected from a user's chat message.
 */
public enum ChatIntent {

    /** User wants to search for documents in Fess */
    SEARCH("search"),

    /** User wants a summary of a specific document */
    SUMMARY("summary"),

    /** User is asking a FAQ-type question */
    FAQ("faq"),

    /** Intent is unclear - need to ask user for clarification */
    UNCLEAR("unclear");

            "current_user": {
                "user": "user_1",
                "scopes": ["me"],
                "db_session": "db_session_1",
            },
        },
        "user_items": {
            "user_items": "user_items_1",
            "user_me": {
                "user_me": "user_me_2",
                "current_user": {
                    "user": "user_2",
                    "scopes": ["items", "me"],

   * @deprecated Use {@link #transitiveClosure(Graph, TransitiveClosureSelfLoopStrategy)} instead.
   */
  @SuppressWarnings("InlineMeSuggester") // We expect most users to want to change behavior.
  @Deprecated
  public static <N> ImmutableGraph<N> transitiveClosure(Graph<N> graph) {
    return transitiveClosure(graph, ADD_SELF_LOOPS_ALWAYS);
  }

  /**

     * have the same nullness as E." Since we can't, we declare it to return nullable elements, and
     * we can override it in our non-null-guaranteeing subtypes to present a better signature to
     * their users.
     *
     * However, the checker *we* use has this special knowledge about `Collection.toArray()` anyway,
     * so in our implementation code, we can rely on that. That's why the expression below
     * type-checks.

	k.accessToken = accessToken
	k.Unlock()
	return nil
}

// LookupUser lookup user by their userid.
func (k *KeycloakProvider) LookupUser(userid string) (User, error) {
	req, err := http.NewRequest(http.MethodGet, k.adminURL, nil)
	if err != nil {
		return User{}, err
	}
	req.URL.Path = path.Join(req.URL.Path, "realms", k.realm, "users", userid)

	k.Lock()
	accessToken := k.accessToken
	k.Unlock()

   * if the row, column, or value functions return null on any input.
   *
   * @since 33.2.0 (available since 21.0 in guava-jre)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using streams.
  public static <T extends @Nullable Object, R, C, V>
      Collector<T, ?, ImmutableTable<R, C, V>> toImmutableTable(
          Function<? super T, ? extends R> rowFunction,

   * @throws IllegalArgumentException if {@code permitsPerSecond} is negative or zero or {@code
   *     warmupPeriod} is negative
   * @since 33.4.0 (but since 28.0 in the JRE flavor)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public static RateLimiter create(double permitsPerSecond, Duration warmupPeriod) {
    return create(permitsPerSecond, toNanosSaturated(warmupPeriod), NANOSECONDS);
  }