}
            final HttpServletResponse response = LaResponseUtil.getResponse();
            try {
                final Auth auth = new Auth(getSettings(), request, response);
                final Saml2Settings settings = auth.getSettings();
                settings.setSPValidationOnly(true);
                final String metadata = settings.getSPMetadata();

{* ../../docs_src/settings/app03_an_py39/main.py hl[1,11] *}

Em qualquer chamada subsequente de `get_settings()` nas dependências das próximas requisições, em vez de executar o código interno de `get_settings()` e criar um novo objeto `Settings`, ele retornará o mesmo objeto que foi retornado na primeira chamada, repetidamente.

#### Detalhes Técnicos do `lru_cache` { #lru-cache-technical-details }

{* ../../docs_src/settings/app03_an_py39/main.py hl[1,11] *}

Entonces, para cualquier llamada subsiguiente de `get_settings()` en las dependencias de los próximos requests, en lugar de ejecutar el código interno de `get_settings()` y crear un nuevo objeto `Settings`, devolverá el mismo objeto que fue devuelto en la primera llamada, una y otra vez.

{* ../../docs_src/settings/app03_an_py39/main.py hl[1,11] *}

Then for any subsequent call of `get_settings()` in the dependencies for the next requests, instead of executing the internal code of `get_settings()` and creating a new `Settings` object, it will return the same object that was returned on the first call, again and again.

#### `lru_cache` Technical Details { #lru-cache-technical-details }

                    value = ReflectionValueExtractor.evaluate(pathExpression, session.getSettings());
                    value = value + expression.substring(pathSeparator);
                } else {
                    value = ReflectionValueExtractor.evaluate(expression, session.getSettings());
                }
            } catch (Exception e) {
                // TODO don't catch exception

如果依赖项函数只是这样的：

```Python
def get_settings():
    return Settings()
```

我们将为每个请求创建该对象，并且将在每个请求中读取 `.env` 文件。 ⚠️

但是，由于我们在顶部使用了 `@lru_cache` 装饰器，因此只有在第一次调用它时，才会创建 `Settings` 对象一次。 ✔️

{* ../../docs_src/settings/app03_an_py39/main.py hl[1,11] *}

然后，在下一次请求的依赖项中对 `get_settings()` 进行任何后续调用时，它不会执行 `get_settings()` 的内部代码并创建新的 `Settings` 对象，而是返回在第一次调用时返回的相同对象，一次又一次。

    return test_main_mod


def test_settings(main_mod: ModuleType, monkeypatch: MonkeyPatch):
    monkeypatch.setenv("ADMIN_EMAIL", "******@****.***")
    settings = main_mod.get_settings()
    assert settings.app_name == "Awesome API"
    assert settings.items_per_user == 50


def test_override_settings(test_main_mod: ModuleType):

        return repositories == null ? null : map(repositories, this::toArtifactRepository);
    }

    @Nonnull
    @Override
    public Settings getSettings() {
        return getMavenSession().getSettings().getDelegate();
    }

    @Nonnull
    @Override
    public Collection<ToolchainModel> getToolchains() {
        return getMavenSession().getRequest().getToolchains().values().stream()

    return main_mod


def test_settings(main_mod: ModuleType, monkeypatch: MonkeyPatch):
    monkeypatch.setenv("ADMIN_EMAIL", "******@****.***")
    settings = main_mod.get_settings()
    assert settings.app_name == "Awesome API"
    assert settings.admin_email == "******@****.***"
    assert settings.items_per_user == 50


def test_endpoint(main_mod: ModuleType, monkeypatch: MonkeyPatch):

     *
     * @return The underlying character stream, never {@code null}.
     * @deprecated instead use {@link #getContent()}
     */
    @Deprecated
    public String getSettings() {
        return getContent();
    }