)
)

        important to us to keep Guava as easy to use and understand as we can. That means boiling
        features down to compact but powerful abstractions, and controlling feature bloat carefully.


        Guava's main yardstick for evaluating proposed features can be summed up as [utility times
        ubiquity](https://github.com/google/guava/wiki/PhilosophyExplained#utility-times-ubiquity).


        #### Utility: compare with alternatives

また、将来的にリファレンスとして機能するように構築されています。

従って、後でこのチュートリアルに戻ってきて必要なものを確認できます。

## コードを実行する

すべてのコードブロックをコピーして直接使用できます（実際にテストされたPythonファイルです）。

いずれかの例を実行するには、コードを `main.py`ファイルにコピーし、` uvicorn`を次のように起動します:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

The main tasks that you can do right now are:

* [Help others with questions in GitHub](#help-others-with-questions-in-github){.internal-link target=_blank} (see the section above).
* [Review Pull Requests](#review-pull-requests){.internal-link target=_blank} (see the section above).

Those two tasks are what **consume time the most**. That's the main work of maintaining FastAPI.

For a quick installation, docker-compose reference configs are also available on the [Keycloak GitHub](https://github.com/keycloak/keycloak-containers/tree/main/docker-compose-examples).

### Configure Keycloak Realm

- Go to Clients
  - Click on account
    - Settings
    - Change `Access Type` to `confidential`.
    - Save
  - Click on credentials tab

    CountDownLatch computeSignal = new CountDownLatch(1);
    // tells the main thread when computation is pending
    CountDownLatch secondSignal = new CountDownLatch(1);
    // tells the main thread when the second get has started
    CountDownLatch thirdSignal = new CountDownLatch(1);
    // tells the main thread when the third get has started
    CountDownLatch fourthSignal = new CountDownLatch(1);

				writeErrorResponse(r.Context(), w, toAPIError(r.Context(), err), r.URL)
			}
			return
		}
	}

	if globalEtcdClient != nil {
		// Borrowed from
		// https://github.com/etcd-io/etcd/blob/main/etcdctl/ctlv3/command/ep_command.go#L118
		ctx, cancel := context.WithTimeout(r.Context(), defaultContextTimeout)
		defer cancel()
		if _, err := globalEtcdClient.Get(ctx, "health"); err != nil {

    //                                                                       Login Execute
    //                                                                      ==============

    /**
     * Main SSO authentication endpoint.
     *
     * This method handles the primary SSO authentication flow. It checks if a user
     * is already logged in, attempts SSO authentication, and handles various

                exampleClass = if (descriptor.componentType === ComponentType.LIBRARY) "Hello" else "Greeter"
                sourceFile = (if (descriptor.componentType === ComponentType.LIBRARY) "Hello" else "main") + ".swift"
                testSourceFile = exampleClass + "Tests.swift"
                sourceFileTree = "        │       └── $sourceFile"
                testSourceFileTree = """                └── $testSourceFile

    CountDownLatch computeSignal = new CountDownLatch(1);
    // tells the main thread when computation is pending
    CountDownLatch secondSignal = new CountDownLatch(1);
    // tells the main thread when the second get has started
    CountDownLatch thirdSignal = new CountDownLatch(1);
    // tells the main thread when the third get has started
    CountDownLatch fourthSignal = new CountDownLatch(1);