assertTrue(tag.toString().contains("attrName=role"));
        assertTrue(tag.toString().contains("attrValue=link"));
    }

    // Mock implementation of Node for testing without external dependencies
    private static class MockNode implements Node {
        private final String nodeName;
        private final Map<String, MockNode> attributes = new HashMap<>();

///

/// tip | Підказка

Якщо Вам потрібно виконати будь-яку валідацію, яка вимагає взаємодії з будь-яким **зовнішнім компонентом**, таким як база даних чи інший API, ви повинні замість цього використовувати **FastAPI Dependencies**. Ви дізнаєтесь про них пізніше.

Ці кастомні валідатори використовуються для речей, які можна перевірити лише з **тими даними**, що надані в запиті.

///

### Зрозумійте цей код

Using `check_same_thread=False` allows FastAPI to use the same SQLite database in different threads. This is necessary as **one single request** could use **more than one thread** (for example in dependencies).

Don't worry, with the way the code is structured, we'll make sure we use **a single SQLModel *session* per request** later, this is actually what the `check_same_thread` is trying to achieve.

# Do not do this. If enabled protobuf's core internal target 
# @com_google_protobuf//python:protobuf_python will start depending on a bunch
# of cc_binary shared libraries artifacts, which will mess with how we link 
# protobuf dependencies ourselves. By default this value is false, but some 
# projects enable it, which we don't want here.
# build --define=use_fast_cpp_protos=true

# Make Bazel print out all options from rc files.
common --announce_rc

After activating the environment, install the required packages:

<div class="termy">

```console
$ pip install -r requirements.txt

---> 100%
```

</div>

It will install all the dependencies and your local FastAPI in your local environment.

### Using your local FastAPI

import org.lastaflute.job.JobManager;
import org.lastaflute.web.servlet.request.RequestManager;
import org.lastaflute.web.servlet.request.ResponseManager;

/**
 * Utility class for accessing system components and dependencies.
 * Provides centralized access to various helpers, managers, and services throughout the Fess application.
 */
public final class ComponentUtil {

        ComponentUtil.register(languageHelper, "languageHelper");
        ComponentUtil.register(fessConfig, "fessConfig");
        ComponentUtil.register(ingestFactory, "ingestFactory");

        // Inject dependencies
        indexUpdater.searchEngineClient = searchEngineClient;
        indexUpdater.dataService = dataService;
        indexUpdater.urlQueueService = urlQueueService;

    public static final String MAVEN_REPO_LOCAL_RECORD_REVERSE_TREE = "maven.repo.local.recordReverseTree";

    /**
     * User property for selecting dependency manager behaviour regarding transitive dependencies and dependency
     * management entries in their POMs. Maven 3 targeted full backward compatibility with Maven 2. Hence, it ignored

* **Editor support**.
* **Type checks**.

...and **FastAPI** uses the same declarations to:

* **Define requirements**: from request path parameters, query parameters, headers, bodies, dependencies, etc.
* **Convert data**: from the request to the required type.
* **Validate data**: coming from each request:
    * Generating **automatic errors** returned to the client when the data is invalid.

* **Editor ondersteuning**.
* **Type checks**.

...en **FastAPI** gebruikt dezelfde declaraties om:

* **Vereisten te definïeren **: van request pad parameters, query parameters, headers, bodies, dependencies, enz.
* **Data te converteren**: van de request naar het vereiste type.
* **Data te valideren**: afkomstig van elke request: