import java.util.concurrent.Future;
import org.jspecify.annotations.Nullable;

/**
 * A callback for accepting the results of a {@link java.util.concurrent.Future} computation
 * asynchronously.
 *
 * <p>To attach to a {@link ListenableFuture} use {@link Futures#addCallback}.
 *
 * @author Anthony Zana
 * @since 10.0
 */
@GwtCompatible
public interface FutureCallback<V extends @Nullable Object> {

import com.google.errorprone.annotations.Immutable;
import com.google.errorprone.annotations.InlineMe;

/**
 * A {@link ValueGraph} whose elements and structural relationships will never change. Instances of
 * this class may be obtained with {@link #copyOf(ValueGraph)}.
 *
 * <p>See the Guava User's Guide's <a
 * href="https://github.com/google/guava/wiki/GraphsExplained#immutable-implementations">discussion

/// tip | Consejo

Si quieres **aprender FastAPI** de una manera estructurada (recomendado), ve y lee el [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} capítulo por capítulo.

* <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a> : un serveur ASGI haute performance.
* <a href="https://hypercorn.readthedocs.io/" class="external-link" target="_blank">Hypercorn</a> : un serveur
  ASGI compatible avec HTTP/2 et Trio entre autres fonctionnalités.
* <a href="https://github.com/django/daphne" class="external-link" target="_blank">Daphne</a> : le serveur ASGI
  conçu pour Django Channels.

 * </tr>
 * <tr>
 * <th>{@link String}</th>
 * <td>characters</td>
 * <td>characters</td>
 * <td>characters</td>
 * <td>&times;</td>
 * </tr>
 * </table>
 * <p>
 * Methods that take {@link InputStream}/{@link OutputStream}/{@link Reader}/{@link Writer} as arguments do not call {@link Closeable#close()} on the arguments. The caller is responsible for closing them.
 * </p>
 * <p>

 * JDK's collection wrappers, such as {@link java.util.Collections#unmodifiableCollection}. Use an
 * interface-specific subclass of {@code ForwardingObject}, such as {@link ForwardingList}, to
 * preserve equality behavior, or override {@code equals} directly.
 *
 * <p>The {@code toString} method is forwarded to the delegate. Although this class does not

добавлять свои собственные заголовки <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">при помощи префикса 'X-'</a>.

Если же вы хотите добавить собственные заголовки, которые клиент сможет увидеть в браузере, то вам потребуется добавить их в настройки CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}), используя параметр `expose_headers`, см. документацию <a href="https://www.starlette.io/middleware/#corsmiddleware"...

import java.util.List;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.junit.Ignore;

/**
 * Base class for testers of classes (including {@link Collection} and {@link java.util.Map Map})
 * that contain elements.
 *
 * @param <C> the type of the container
 * @param <E> the type of the container's contents
 * @author George van den Driessche
 */
@GwtCompatible

{* ../../docs_src/python_types/tutorial011.py *}


/// info | 情報

Pydanticについてより学びたい方は<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">ドキュメントを参照してください</a>.

///

**FastAPI** はすべてPydanticをベースにしています。

すべてのことは[チュートリアル - ユーザーガイド](tutorial/index.md){.internal-link target=_blank}で実際に見ることができます。

## **FastAPI**での型ヒント

**FastAPI** はこれらの型ヒントを利用していくつかのことを行います。

     * Creates and returns a new instance of {@link ArrayDeque}.
     *
     * @param <E> the element type of {@link ArrayDeque}
     * @return a new instance of {@link ArrayDeque}
     * @see ArrayDeque#ArrayDeque()
     */
    public static <E> ArrayDeque<E> newArrayDeque() {
        return new ArrayDeque<>();
    }

    /**
     * Creates and returns a new instance of {@link ArrayDeque}.
     *