return false;
        }

        return false;
    }

    /**
     * Checks if a model version is greater than or equal to a target version.
     *
     * @param modelVersion the model version to check
     * @param targetVersion the target version to compare against
     * @return true if modelVersion >= targetVersion
     */

///

### 尝试带有依赖项的 WebSockets

如果您的文件名为 `main.py`，请使用以下命令运行应用程序：

```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)
```

在浏览器中打开 <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>。

更多细节查看 <a href="https://www.starlette.dev/background/" class="external-link" target="_blank">Starlette's official docs for Background Tasks</a>.

## 告诫

如果您需要执行繁重的后台计算，并且不一定需要由同一进程运行（例如，您不需要共享内存、变量等），那么使用其他更大的工具（如 <a href="https://docs.celeryq.dev" class="external-link" target="_blank">Celery</a>）可能更好。

它们往往需要更复杂的配置，即消息/作业队列管理器，如RabbitMQ或Redis，但它们允许您在多个进程中运行后台任务，甚至是在多个服务器中。

///

이 튜토리얼은 매우 간단하고 짧습니다. 데이터베이스 기본 개념, SQL, 또는 더 복잡한 기능에 대해 배우고 싶다면, <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">SQLModel 문서</a>를 참고하세요.

## `SQLModel` 설치하기

먼저, [가상 환경](../virtual-environments.md){.internal-link target=_blank}을 생성하고 활성화한 다음, `sqlmodel`을 설치하세요:

				default:
					err = dc.Skip()
					if err != nil {
						err = msgp.WrapError(err, "Flags")
						return
					}
				}
			}
		case "Target":
			err = z.Target.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Target")
				return
			}
		case "Source":
			err = z.Source.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Source")
				return
			}

Также можно объявлять дополнительные ответы с их моделями, статус-кодами и т.д.

В документации есть целая глава об этом — [Дополнительные ответы в OpenAPI](additional-responses.md){.internal-link target=_blank}.

## Дополнительные данные OpenAPI { #openapi-extra }

     * Return an existing file, not a directory - causes creation to fail.
     *
     * @throws Exception
     */
    protected ArtifactRepository badLocalRepository() throws Exception {
        String path = "target/test-repositories/" + component() + "/bad-local-repository";

        File f = new File(getBasedir(), path);

        f.createNewFile();

        return artifactRepositoryFactory.createArtifactRepository(

/// info | Información

Puedes leer más sobre los manejadores `lifespan` de Starlette en <a href="https://www.starlette.dev/lifespan/" class="external-link" target="_blank">la documentación de `Lifespan` de Starlette</a>.

As you saw in the previous chapter about [Deployment Concepts](concepts.md){.internal-link target=_blank}, there are multiple strategies you can use.

Here I'll show you how to use **Uvicorn** with **worker processes** using the `fastapi` command or the `uvicorn` command directly.

/// info

    * Sie können auch [`Security`-Abhängigkeiten mit `scopes`](../advanced/security/oauth2-scopes.md){.internal-link target=_blank} hinzufügen.

/// tip | Tipp