*         .onlyIfCached()
 *         .build())
 *     .url("http://publicobject.com/helloworld.txt")
 *     .build();
 * Response forceCacheResponse = client.newCall(request).execute();
 * if (forceCacheResponse.code() != 504) {
 *   // The resource was cached! Show it.
 * } else {
 *   // The resource was not cached.
 * }
 * ```
 *

![Swagger UI Interaktion](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Klicken Sie dann auf den Button „Execute“, die Benutzeroberfläche wird mit Ihrer API kommunizieren, die Parameter senden, die Ergebnisse erhalten und sie auf dem Bildschirm anzeigen:

![Swagger UI Interaktion](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* 点击「Try it out」按钮，它允许你填写参数并直接与 API 交互：

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* 然后点击「Execute」按钮，界面会与你的 API 通信、发送参数、获取结果并在屏幕上展示：

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)

### 可选文档升级 { #alternative-api-docs-upgrade }

              }

              @Override
              public String toString() {
                return callable.toString();
              }
            });
    executor.execute(task);
    return new ClosingFuture<>(task, closeables);
  }

  /**
   * Starts a {@link ClosingFuture} pipeline by submitting a callable block to an executor.
   *

            final UserInfo e = new UserInfo();
            e.setId(userCode);
            e.setCreatedAt(now);
            e.setUpdatedAt(now);
            return e;
        });
        CommonPoolUtil.execute(() -> userInfoBhv.insertOrUpdate(userInfo));
        return userInfo;
    }

    /**
     * Gets user information.
     *
     * @param userCode The user code.
     * @return The user information.

    }
  }

  /**
   * This service will shut down very quickly after stopAsync is called and uses a background thread
   * so that we know that the stopping() listeners will execute on a different thread than the
   * terminated() listeners.
   */
  private static class SnappyShutdownService extends AbstractExecutionThreadService {
    final int index;

    disable the sharding so that all the test outputs are in one file. However,
    it may slow down the tests for not running in parallel and may cause the
    test to timeout but it could be useful when you need to execute a single
    test or more in general your filtered/selected tests have a very low
    execution time and the sharding

The most important part is that when you call `python`, that is the exact "`python`" that will be executed.

So, you can confirm if you are in the correct virtual environment.

/// tip

It's easy to activate one virtual environment, get one Python, and then **go to another project**.

* "Try it out" butonuna tıklayın; parametreleri doldurmanıza ve API ile doğrudan etkileşime girmenize olanak sağlar:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Sonra "Execute" butonuna tıklayın; kullanıcı arayüzü API'nız ile iletişim kuracak, parametreleri gönderecek, sonuçları alacak ve ekranda gösterecek:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)

* Нажмите кнопку «Try it out», это позволит вам заполнить параметры и напрямую взаимодействовать с API:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

* Затем нажмите кнопку «Execute», интерфейс свяжется с вашим API, отправит параметры, получит результаты и отобразит их на экране:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)