Esto facilita generar **documentación** actualizada, paquetes de cliente (<abbr title="Software Development Kits – Kits de Desarrollo de Software">**SDKs**</abbr>) en múltiples lenguajes y **escribir pruebas** o **flujos de automatización** que se mantengan sincronizados con tu código.

Isso facilita gerar **documentação** atualizada, bibliotecas clientes (<abbr title="Software Development Kits – Kits de Desenvolvimento de Software">**SDKs**</abbr>) em várias linguagens e **testes** ou **fluxos de trabalho de automação** que permanecem em sincronia com o seu código.

# Generating SDKs { #generating-sdks }

Because **FastAPI** is based on the **OpenAPI** specification, its APIs can be described in a standard format that many tools understand.

This makes it easy to generate up-to-date **documentation**, client libraries (<abbr title="Software Development Kits">**SDKs**</abbr>) in multiple languages, and **testing** or **automation workflows** that stay in sync with your code.

Поскольку **FastAPI** основан на спецификации **OpenAPI**, его API можно описать в стандартном формате, понятном множеству инструментов.

Это упрощает генерацию актуальной **документации**, клиентских библиотек (<abbr title="Software Development Kits – Наборы средств разработки">**SDKs**</abbr>) на разных языках, а также **тестирования** или **воркфлоу автоматизации**, которые остаются синхронизированными с вашим кодом.

### Top-level application { #top-level-application }

First, create the main, top-level, **FastAPI** application, and its *path operations*:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[3, 6:8] *}

### Sub-application { #sub-application }

Then, create your sub-application, and its *path operations*.

This sub-application is just another standard FastAPI application, but this is the one that will be "mounted":

                final SearchHits searchHits = response.getHits();
                final SearchHit[] hits = searchHits.getHits();
                if (hits.length == 0) {
                    break;
                }

                final BulkRequestBuilder bulkRequest = client.prepareBulk();
                for (final SearchHit hit : hits) {
                    final UpdateRequestBuilder requestBuilder =

   * of the returned array is that of the specified array. If the collection fits in the specified
   * array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the
   * specified array and the size of the specified collection.
   *
   * <p>If the collection fits in the specified array with room to spare (i.e., the array has more

## Using the `jsonable_encoder` in a `Response` { #using-the-jsonable-encoder-in-a-response }

Because **FastAPI** doesn't make any changes to a `Response` you return, you have to make sure its contents are ready for it.

For example, you cannot put a Pydantic model in a `JSONResponse` without first converting it to a `dict` with all the data types (like `datetime`, `UUID`, etc) converted to JSON-compatible types.

  /** Maps a bucket to the "entry" of its first element. */
  private transient int[] hashTableKToV;

  /** Maps a bucket to the "entry" of its first element. */
  private transient int[] hashTableVToK;

  /** Maps an "entry" to the "entry" that follows it in its bucket. */
  private transient int[] nextInBucketKToV;

  /** Maps an "entry" to the "entry" that follows it in its bucket. */

  private LinkedHashMultiset(int distinctElements) {
    super(Maps.newLinkedHashMapWithExpectedSize(distinctElements));
  }

  /**
   * @serialData the number of distinct elements, the first element, its count, the second element,
   *     its count, and so on
   */
  @GwtIncompatible
  @J2ktIncompatible
    private void writeObject(ObjectOutputStream stream) throws IOException {
    stream.defaultWriteObject();