*
 * Other exception types cancel the current call:
 *
 *  * For synchronous calls made with [Call.execute], the exception is propagated to the caller.
 *
 *  * For asynchronous calls made with [Call.enqueue], an [IOException] is propagated to the caller
 *    indicating that the call was canceled. The interceptor's exception is delivered to the current

## Servidores ASGI { #asgi-servers }

Vamos nos aprofundar um pouco mais em detalhes.

FastAPI utiliza um padrão para construir frameworks e servidores web em Python chamado <abbr title="Asynchronous Server Gateway Interface - Interface de Gateway de Servidor Assíncrono">ASGI</abbr>. FastAPI é um framework web ASGI.

   */
  fun cancel()

  fun interface Factory {
    /**
     * Creates a new web socket and immediately returns it. Creating a web socket initiates an
     * asynchronous process to connect the socket. Once that succeeds or fails, `listener` will be
     * notified. The caller must either close or cancel the returned web socket when it is no longer
     * in use.
     */

アプリケーションが lifespan イベントに依存している場合、`AsyncClient` はそれらのイベントをトリガーしません。確実にトリガーするには、[florimondmanca/asgi-lifespan](https://github.com/florimondmanca/asgi-lifespan#usage) の `LifespanManager` を使用してください。

///

## その他の非同期関数呼び出し { #other-asynchronous-function-calls }

テスト関数が非同期になったので、FastAPI アプリへのリクエスト送信以外の `async` 関数も、コードの他の場所と同様に呼び出して（`await` して）使えます。

/// tip | 豆知識

 * ListenableFuture}</a>.
 *
 * <p>This class is GWT-compatible.
 *
 * <h3>Purpose</h3>
 *
 * <p>The main purpose of {@code ListenableFuture} is to help you chain together a graph of
 * asynchronous operations. You can chain them together manually with calls to methods like {@link
 * Futures#transform(ListenableFuture, com.google.common.base.Function, Executor) Futures.transform}

    /** The time manager for handling time-related operations. */
    @Resource
    private TimeManager timeManager;

    /** The async manager for handling asynchronous operations. */
    @Resource
    private AsyncManager asyncManager;

    /** The session manager for handling user sessions. */
    @Resource
    private SessionManager sessionManager;

 * Caffeine}</a> class. Caffeine offers better performance, more features (including asynchronous
 * loading), and fewer <a
 * href="https://github.com/google/guava/issues?q=is%3Aopen+is%3Aissue+label%3Apackage%3Dcache+label%3Atype%3Ddefect">bugs</a>.
 *
 * <p>Caffeine defines its own interfaces (<a

            }

            return response;

        } catch (Exception e) {
            throw new IOException("Witness heartbeat RPC failed", e);
        }
    }

    /**
     * Requests asynchronous notifications from the witness service.
     *
     * @param contextHandle the context handle from registration
     * @return the async notify response containing notifications

            }
        }
    }

    private void notifyOperationFailure(CommonServerMessageBlock op, Exception error) {
        // This would need to be implemented based on how the SMB operations
        // handle asynchronous failures in the actual transport implementation
        log.debug("Operation failed during redistribution: {}", error.getMessage());
    }

    private void scheduleRecovery(ChannelInfo channel, FailoverState state) {

## ASGI Servers { #asgi-servers }

Let's go a little deeper into the details.

FastAPI uses a standard for building Python web frameworks and servers called <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>. FastAPI is an ASGI web framework.