### 其他可选依赖 { #additional-optional-dependencies }

还有一些你可能想安装的可选依赖。

额外的 Pydantic 可选依赖：

* [`pydantic-settings`](https://docs.pydantic.dev/latest/usage/pydantic_settings/) - 用于配置管理。
* [`pydantic-extra-types`](https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/) - 用于在 Pydantic 中使用的额外类型。

额外的 FastAPI 可选依赖：

                 */
                if (preq.getPath() != null && preq.getPath().length() > 0) {
                    if (log.isDebugEnabled()) {
                        log.debug(String.format("Setting DFS request path from %s to %s", preq.getPath(), preq.getFullUNCPath()));
                    }
                    preq.setResolveInDfs(true);
                    preq.setPath(preq.getFullUNCPath());
                }

///

This is how you would use `Query()` as the default value of your function parameter, setting the parameter `max_length` to 50:

{* ../../docs_src/query_params_str_validations/tutorial002_py310.py hl[7] *}

But you might want to still keep the return type annotation in the function to get the support from tools like editors and type checkers (e.g. mypy).

In this case, you can disable the response model generation by setting `response_model=None`:

{* ../../docs_src/response_model/tutorial003_05_py310.py hl[7] *}

```

</div>

La réponse sera semblable à :

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

### Définir le `root_path` dans l'application FastAPI { #setting-the-root-path-in-the-fastapi-app }

```

</div>

A resposta seria algo como:

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

### Configurando o `root_path` na aplicação FastAPI { #setting-the-root-path-in-the-fastapi-app }

Alternativamente, se você não tiver uma maneira de fornecer uma opção de linha de comando como `--root-path` ou equivalente, você pode definir o parâmetro `root_path` ao criar sua aplicação FastAPI:

// A tensorflow.ServerDef specifies remote workers (in addition to the current
// workers name). Operations created in this context can then be executed on
// any of these remote workers by setting an appropriate device.
//
// If the following is set, all servers identified by the
// ServerDef must be up when the context is created.
TF_CAPI_EXPORT extern void TFE_ContextSetServerDef(TFE_Context* ctx,

        how many times the function is called, and independent of global seed
        settings.
    *   Adds deterministic `tf.image.resize` backprop CUDA kernels for
        `method=ResizeMethod.BILINEAR` (the default method). Enable by setting
        the environment variable `TF_DETERMINISTIC_OPS` to `"true"` or `"1"`.
*   `tf.print`:

        // First call to initialize
        testFactory.getDataStoreNames();

        final long[] observedTimes = new long[10];
        final Thread[] threads = new Thread[10];

        // Trigger cache refresh by setting old time
        testFactory.lastLoadedTime = System.currentTimeMillis() - 70000L;

        // One thread updates
        Thread updater = new Thread(() -> {
            testFactory.getDataStoreNames();
        });

 * and {@link java.net.InetAddress}. The name resolution mechanisms
 * used will systematically query all available configured resolution
 * services including WINS, broadcasts, DNS, and LMHOSTS. See
 * <a href="../../resolver.html">Setting Name Resolution Properties</a>
 * and the <code>jcifs.smb1.resolveOrder</code> property. Changing
 * jCIFS name resolution properties can greatly affect the behavior of
 * the client and may be necessary for proper operation.