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 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 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 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();
    }

 * </p>
 *
 *
 * @since 4.0.0
 * @see Repository
 * @see LocalRepository
 * @see Session#getSettings()
 * @see ModelBase#getRepositories()
 * @see ModelBase#getPluginRepositories()
 */
@Experimental
@Immutable
public interface RemoteRepository extends Repository {

    @Nonnull
    String getUrl();

	public final fun getOnResponseEnd ()Lmockwebserver3/SocketEffect;
	public final fun getOnResponseStart ()Lmockwebserver3/SocketEffect;
	public final fun getPushPromises ()Ljava/util/List;
	public final fun getSettings ()Lokhttp3/internal/http2/Settings;
	public final fun getShutdownServer ()Z
	public final fun getSocketHandler ()Lmockwebserver3/SocketHandler;
	public final fun getStatus ()Ljava/lang/String;

    @Deprecated
    @Override
    public ArtifactRepository getMirrorRepository(ArtifactRepository repository) {

        Mirror mirror = mirrorSelector.getMirror(
                repository, legacySupport.getSession().getSettings().getMirrors());

        if (mirror != null) {
            String id = mirror.getId();
            if (id == null) {
                // TODO this should be illegal in settings.xml

// Enabled returns if configURL is enabled.
func Enabled(kvs config.KVS) bool {
	return kvs.Get(ConfigURL) != ""
}

// GetSettings - fetches OIDC settings for site-replication related validation.
// NOTE that region must be populated by caller as this package does not know.
func (r *Config) GetSettings() madmin.OpenIDSettings {
	res := madmin.OpenIDSettings{}
	if !r.Enabled {
		return res
	}
	h := sha256.New()