*/
    public void resetStatistics() {
        for (AtomicLong counter : eventCounters.values()) {
            counter.set(0);
        }
        for (AtomicLong timing : eventTimings.values()) {
            timing.set(0);
        }
    }

    /**
     * Enable or disable JSON logging
     *
     * @param enable true to enable JSON logging
     */

Ancak bir query parametresini zorunlu yapmak istediğinizde, herhangi bir varsayılan değer tanımlamamanız yeterlidir:

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

Burada query parametresi `needy`, `str` tipinde zorunlu bir query parametresidir.

Tarayıcınızda şöyle bir URL açarsanız:

```
http://127.0.0.1:8000/items/foo-item
```

...zorunlu `needy` parametresini eklemeden, şuna benzer bir hata görürsünüz:

 * whereToDiffer} produces no observable change in performance. We want to make sure that the array
 * equals implementation is *not* short-circuiting to prevent timing-based attacks. Being fast is
 * only a secondary goal.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class HashCodeBenchmark {

You will get completion in code you might even consider impossible before. As for example, the `price` key inside a JSON body (that could have been nested) that comes from a request.

No more typing the wrong key names, coming back and forth between docs, or scrolling up and down to find if you finally used `username` or `user_name`.

### Short { #short }

import jakarta.annotation.PreDestroy;

/**
 * Helper class for managing crawler statistics and performance metrics.
 * This class provides functionality to track, record, and report statistics
 * about crawler operations including timing data, performance metrics, and
 * operational events. It uses an internal cache to maintain statistics
 * objects and provides methods to begin tracking, record events, and
 * finalize statistics collection.
 *
 */

 *   <li>Thread pool management for crawler execution</li>
 *   <li>Session-based crawling with cleanup operations</li>
 *   <li>Old document deletion after successful crawling</li>
 *   <li>Crawling execution monitoring and timing</li>
 * </ul>
 */
public class DataIndexHelper {

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(DataIndexHelper.class);

            final byte[] cmp = new byte[SIGNATURE_LENGTH];
            System.arraycopy(mac.doFinal(), 0, cmp, 0, SIGNATURE_LENGTH);

            // Use constant-time comparison to prevent timing attacks
            if (!MessageDigest.isEqual(sig, cmp)) {
                return false; // Signature verification failed
            }
            return true; // Signature verification succeeded
        } finally {

            assertFalse(isValid, "Different session keys should fail verification");
        }
    }

    @Nested
    @DisplayName("Secure Key Wiping Tests")
    class SecureKeyWipingTests {

        @Test
        @DisplayName("Should securely wipe signing key")
        void testSecureWipeKey() throws GeneralSecurityException {

    # Вернуть ошибку
    ...
```

Но используя `secrets.compare_digest()`, вы защитите код от атак типа «тайминговая атака» (атака по времени).

### Тайминговые атаки { #timing-attacks }

Что такое «тайминговая атака»?

Представим, что злоумышленники пытаются угадать имя пользователя и пароль.

И они отправляют запрос с именем пользователя `johndoe` и паролем `love123`.

from functools import lru_cache
from pathlib import Path
from typing import Any

import material
from mkdocs.config.defaults import MkDocsConfig
from mkdocs.structure.files import File, Files
from mkdocs.structure.nav import Link, Navigation, Section
from mkdocs.structure.pages import Page

non_translated_sections = [
    "reference/",
    "release-notes.md",
    "fastapi-people.md",
    "external-links.md",
    "newsletter.md",