* `limit`, un `int` optionnel.

/// tip | Astuce

Vous pouvez utiliser les `Enum`s de la même façon qu'avec les [Paramètres de chemin](path-params.md#valeurs-predefinies){.internal-link target=_blank}.

            long expiration = System.currentTimeMillis() + 60000;
            referralData = DfsReferralDataImpl.fromReferral(mockReferral, "\\\\server\\share\\folder", expiration, 20);
            referralData.setLink("\\\\link\\target");

            String result = referralData.toString();

            assertTrue(result.contains("DfsReferralData["));
            assertTrue(result.contains("pathConsumed=20"));

on(e,t){if(!(this instanceof ce.Event))return new ce.Event(e,t);e&&e.type?(this.originalEvent=e,this.type=e.type,this.isDefaultPrevented=e.defaultPrevented||void 0===e.defaultPrevented&&!1===e.returnValue?Ne:qe,this.target=e.target&&3===e.target.nodeType?e.target.parentNode:e.target,this.currentTarget=e.currentTarget,this.relatedTarget=e.relatedTarget):this.type=e,t&&ce.extend(this,t),this.timeStamp=e&&e.timeStamp||Date.now(),this[ce.expando]=!0},ce.Event.prototype={constructor:ce.Event,isDefaul...

///

/// info | 情報

以下も使用することができます:

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

`exclude_defaults`と`exclude_none`については、<a href="https://docs.pydantic.dev/latest/concepts/serialization/#modeldict" class="external-link" target="_blank">Pydanticのドキュメント</a>で説明されている通りです。

///

    CheckSetUpInvocationHandler(Map<String, String> map, AtomicBoolean setUpRan) {
      this.map = map;
      this.setUpRan = setUpRan;
    }

    @Override
    public Object invoke(Object target, Method method, Object[] args) throws Throwable {
      assertTrue("setUp should have run", setUpRan.get());
      try {
        return method.invoke(map, args);
      } catch (InvocationTargetException e) {

Para ver todas as opções possíveis, cheque a documentação para os<a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">tipos exoticos do Pydantic</a>. Você verá alguns exemplos no próximo capitulo.

Por exemplo, no modelo `Image` nós temos um campo `url`, nós podemos declara-lo como um `HttpUrl` do Pydantic invés de como uma `str`:

    }

    @Override
    public ArtifactRepository createDefaultLocalRepository() throws InvalidRepositoryException {
        return createLocalRepository(
                new File(System.getProperty("basedir", "."), "target/local-repo").getAbsoluteFile());
    }

    @Override
    public ArtifactRepository createDefaultRemoteRepository() throws InvalidRepositoryException {
        return new MavenArtifactRepository(

    /** The key of the message: Start Time */
    public static final String LABELS_START_TIME = "{labels.startTime}";

    /** The key of the message: Target */
    public static final String LABELS_TARGET = "{labels.target}";

    /** The key of the message: Token */
    public static final String LABELS_TOKEN = "{labels.token}";

    /** The key of the message: Synonym File */

			}
			// claim-based provider is in the roleArnMap under dummy ARN
			arn = dummyRoleARN
		}
		matchingCfgName, ok := roleArnMap[arn]
		if !ok {
			continue // skip if not part of the target config
		}
		var id string
		if idClaim := globalIAMSys.OpenIDConfig.GetUserIDClaim(matchingCfgName); idClaim != "" {
			id, _ = accessKey.Claims[idClaim].(string)
		}

</div>

**強烈建議**你編寫或複製程式碼、進行修改並在本地端運行。

在編輯器中使用它，才能真正體會到 FastAPI 的好處，可以看到你只需編寫少量程式碼，以及所有的型別檢查、自動補齊等功能。

---

## 安裝 FastAPI

第一步是安裝 FastAPI。

確保你建立一個[虛擬環境](../virtual-environments.md){.internal-link target=_blank}，啟用它，然後**安裝 FastAPI**：

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

/// note