assertFalse(Arrays.equals(derived1, derived2), "Different labels should produce different keys");
        assertFalse(Arrays.equals(derived1, derived3), "Different contexts should produce different keys");
    }

    @Test
    public void testStoreNullKey() {
        assertThrows(IllegalArgumentException.class, () -> keyManager.storeSessionKey("session", null, "AES"));
    }

    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`
* [`Request Body Object`, in the field `content`, on the `Media Type Object` (in the specification)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#media-type-object) that was used by FastAPI's:
    * `Body()`
    * `File()`
    * `Form()`

 * </ul>
 *
 * <p>This tool is particularly useful for identifying memory optimization opportunities
 * in large Maven multi-module projects where POM files may contain significant
 * duplicate content.</p>
 */
public class PomMemoryAnalyzer {
    private final Map<String, Map<String, StringStats>> pathStats = new HashMap<>();
    private final Map<String, Integer> globalStringFrequency = new HashMap<>();

    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`
* [`Request Body Object`, у полі `content`, у `Media Type Object` (у специфікації)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#media-type-object), який використовувався утилітами FastAPI:
    * `Body()`
    * `File()`
    * `Form()`

    old_content = content_path.read_text(encoding="utf-8")

    new_content = yaml.dump(new_content, sort_keys=False, width=200, allow_unicode=True)
    if old_content == new_content:
        logging.info(f"The content hasn't changed for {content_path}")
        return False
    content_path.write_text(new_content, encoding="utf-8")
    logging.info(f"Updated {content_path}")
    return True


def main() -> None:

    //                                                                           Attribute
    //

    /**
     * The helper for related content.
     */
    @Resource
    protected RelatedContentHelper relatedContentHelper;

    /**
     * The helper for related queries.
     */
    @Resource
    protected RelatedQueryHelper relatedQueryHelper;

      response: Response,
      request: Request,
    ): Boolean {
      // Always go to network for uncacheable response codes (RFC 7231 section 6.1), This
      // implementation doesn't support caching partial content.
      when (response.code) {
        HTTP_OK,
        HTTP_NOT_AUTHORITATIVE,
        HTTP_NO_CONTENT,
        HTTP_MULT_CHOICE,
        HTTP_MOVED_PERM,
        HTTP_NOT_FOUND,
        HTTP_BAD_METHOD,

 [r8_proguard]: https://square.github.io/okhttp/features/r8_proguard/
 [recipes]: https://square.github.io/okhttp/recipes/
 [snap]: https://s01.oss.sonatype.org/content/repositories/snapshots/

    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`
* [`Request Body Object`, в поле `content`, в `Media Type Object` (в спецификации)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#media-type-object), которое использовалось в FastAPI:
    * `Body()`
    * `File()`
    * `Form()`

There you can set:

* The "Item ID", used in the path.
* The "Token" used as a query parameter.

/// tip

Notice that the query `token` will be handled by a dependency.

///

With that you can connect the WebSocket and then send and receive messages:

<img src="/img/tutorial/websockets/image05.png">

## Handling disconnections and multiple clients { #handling-disconnections-and-multiple-clients }