/**
 * An {@link ImmutableAsList} implementation specialized for when the delegate collection is already
 * backed by an {@code ImmutableList} or array.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace, not default serialization
class RegularImmutableAsList<E> extends ImmutableAsList<E> {
  private final ImmutableCollection<E> delegate;
  private final ImmutableList<? extends E> delegateList;

### Tag sırası { #order-of-tags }

Her tag metadata sözlüğünün listedeki sırası, doküman arayüzünde gösterilecek sırayı da belirler.

Örneğin alfabetik sıralamada `users`, `items`'tan sonra gelirdi; ancak listedeki ilk sözlük olarak `users` metadata'sını eklediğimiz için, dokümanlarda önce o görünür.

## OpenAPI URL'si { #openapi-url }

Varsayılan olarak OpenAPI şeması `/openapi.json` adresinden sunulur.

    return () -> {
      throw exception;
    };
  }

  private static Runnable runnableThrowing(RuntimeException e) {
    return () -> {
      throw e;
    };
  }

  @SuppressWarnings("serial")
  private static class SampleCheckedException extends Exception {}

 * and processing time metrics. It's used throughout the Fess search system to
 * manage collections of search results and crawled documents.
 *
 */
public class DocList extends ArrayList<Map<String, Object>> {

    /** Serial version UID for serialization */
    private static final long serialVersionUID = 1L;

    /** Total content size of all documents in this list */
    private long contentSize = 0;

import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link ImmutableMap} with exactly one entry.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
final class SingletonImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {

  final transient K singleKey;
  final transient V singleValue;

{* ../../docs_src/stream_data/tutorial002_py310.py ln[30:34] hl[31] *}

/// tip | Tipp

Wenn Sie blockierenden Code aus einer async-Funktion heraus aufrufen müssen, oder eine async-Funktion aus einer blockierenden Funktion, könnten Sie [Asyncer](https://asyncer.tiangolo.com), eine Schwesterbibliothek zu FastAPI, verwenden.

///

### `yield from` { #yield-from }

import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link ImmutableMap} backed by a non-empty {@link java.util.EnumMap}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings("serial") // we're overriding default serialization
final class ImmutableEnumMap<K extends Enum<K>, V> extends IteratorBasedImmutableMap<K, V> {
  static <K extends Enum<K>, V> ImmutableMap<K, V> asImmutable(EnumMap<K, V> map) {

`response_model` parametresinde `dataclasses` da kullanabilirsiniz:

{* ../../docs_src/dataclasses_/tutorial002_py310.py hl[1,6:12,18] *}

Dataclass otomatik olarak bir Pydantic dataclass'ına dönüştürülür.

Bu sayede şeması API docs kullanıcı arayüzünde görünür:

<img src="/img/tutorial/dataclasses/image01.png">

## İç İçe Veri Yapılarında Dataclass'lar { #dataclasses-in-nested-data-structures }

Ensuite, nous créons un modèle `HeroPublic`, c'est celui qui sera **retourné** aux clients de l'API.

Il a les mêmes champs que `HeroBase`, il n'inclura donc pas `secret_name`.

Enfin, l'identité de nos héros est protégée ! 🥷

Il redéclare aussi `id: int`. Ce faisant, nous faisons un **contrat** avec les clients de l'API, afin qu'ils puissent toujours s'attendre à ce que `id` soit présent et soit un `int` (il ne sera jamais `None`).

/// tip | Astuce

De la même manière, vous pouvez définir une logique (du code) qui doit être exécutée lorsque l'application **s'arrête**. Dans ce cas, ce code sera exécuté **une seule fois**, **après** avoir traité potentiellement **de nombreuses requêtes**.