{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

Использование настройки `check_same_thread=False` позволяет FastAPI использовать одну и ту же SQLite базу данных в различных потоках (threads). Это необходимо, когда **один запрос** использует **более одного потока** (например, в зависимостях).

            }
            return user.getUserId();
        }).ifPresent(p -> searchRequestBuilder.setPreference(p)).orElse(() -> LaRequestUtil.getOptionalRequest().map(r -> {
            final HttpSession session = r.getSession(false);
            if (session != null) {
                return session.getId();
            }
            final String preference = r.getParameter("preference");
            if (preference != null) {

## Виняток параметрів з OpenAPI

Щоб виключити параметр запиту зі згенерованої схеми OpenAPI (і, таким чином, з автоматичних систем документації), встановіть параметр `include_in_schema` для `Query` в `False`:

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## Кастомна валідація

      }
      return false;
    }

    @Override
    public boolean remove(@Nullable Object o) {
      if (o instanceof Map.Entry) {
        Map.Entry<?, ?> entry = (Map.Entry<?, ?>) o;
        return multimap().remove(entry.getKey(), entry.getValue());
      }
      return false;
    }

    @Override
    public void clear() {

      }
      return false;
    }

    @Override
    public boolean remove(@Nullable Object o) {
      if (o instanceof Map.Entry) {
        Map.Entry<?, ?> entry = (Map.Entry<?, ?>) o;
        return multimap().remove(entry.getKey(), entry.getValue());
      }
      return false;
    }

    @Override
    public void clear() {

An unsuccessful call has no synchronizing effect at all.
As far as the memory model is concerned,
<code>l.TryLock</code> (or <code>l.TryRLock</code>)
may be considered to be able to return false
even when the mutex <i>l</i> is unlocked.
</p>

<h3 id="once">Once</h3>

<p>
The <code>sync</code> package provides a safe mechanism for
initialization in the presence of multiple goroutines

   */
  @Disabled
  @Test
  fun serverCancelsRequestBodyAndSendsResponseBody() {
    client =
      client
        .newBuilder()
        .retryOnConnectionFailure(false)
        .build()
    val log: BlockingQueue<String?> = LinkedBlockingQueue()
    enableProtocol(Protocol.HTTP_2)
    val body =
      MockSocketHandler()
        .sendResponse("success!")

    // If a clear() happens while a computation is pending, we should not get a removal
    // notification.

    AtomicBoolean shouldWait = new AtomicBoolean(false);
    CountDownLatch computingLatch = new CountDownLatch(1);
    CacheLoader<String, String> computingFunction =
        new CacheLoader<String, String>() {
          @Override

      int numElements,
      long timeout,
      TimeUnit unit) {
    Preconditions.checkNotNull(buffer);
    long deadline = System.nanoTime() + unit.toNanos(timeout);
    int added = 0;
    boolean interrupted = false;
    try {
      while (added < numElements) {
        // we could rely solely on #poll, but #drainTo might be more efficient when there are

    // If a clear() happens while a computation is pending, we should not get a removal
    // notification.

    AtomicBoolean shouldWait = new AtomicBoolean(false);
    CountDownLatch computingLatch = new CountDownLatch(1);
    CacheLoader<String, String> computingFunction =
        new CacheLoader<String, String>() {
          @Override