* <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" target="_blank"><code>pydantic-settings</code></a> - для управління налаштуваннями.
* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - для додаткових типів, що можуть бути використані з Pydantic.

/// check | Идея для **FastAPI**

Использовать код программы для автоматического создания "схем", определяющих типы данных и их проверку.

///

### <a href="https://webargs.readthedocs.io/en/latest/" class="external-link" target="_blank">Webargs</a>

Другая немаловажная функция API - <abbr title="чтение и преобразование данных в объекты Python">парсинг</abbr> данных из входящих запросов.

* İşlem-içi arka plan görevleri.
* Başlatma ve kapatma olayları.
* HTTPX ile geliştirilmiş bir test istemcisi.
* CORS, GZip, Static Files ve Streaming cevapları desteği.
* Session ve çerez desteği.
* Kodun %100'ü test kapsamında.
* Kodun %100'ü tip belirteçleriyle desteklenmiştir.
* Yalnızca bir kaç zorunlu bağımlılığa sahip.

        // Execute
        corsHandlerFactory.add(origin, handler1);
        corsHandlerFactory.add(origin, handler2);

        // Verify - should have the latest handler
        CorsHandler result = corsHandlerFactory.get(origin);
        assertEquals(handler2, result);
        assertEquals("handler2", ((TestCorsHandler) result).getName());
    }

     * Returns an empty list if no crawling information is found for the session.
     *
     * @param sessionId the session identifier to find the latest crawling parameters for
     * @return a list of CrawlingInfoParam entities from the latest session, or empty list if none found
     */
    public List<CrawlingInfoParam> getLastCrawlingInfoParamList(final String sessionId) {

//// tab | Pydantic v2

In Pydantic version 2, you would use the attribute `model_config`, that takes a `dict` as described in <a href="https://docs.pydantic.dev/latest/api/config/" class="external-link" target="_blank">Pydantic's docs: Configuration</a>.

## Pydantic `Settings`

Por sorte, o Pydantic possui uma funcionalidade para lidar com essas configurações vindas de variáveis de ambiente utilizando <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" class="external-link" target="_blank">Pydantic: Settings management</a>.

### Instalando `pydantic-settings`

Primeiro, instale o pacote `pydantic-settings`:

<div class="termy">

* `title`: The OpenAPI title, shown in the docs.
* `version`: The version of your API, e.g. `2.5.0`.
* `openapi_version`: The version of the OpenAPI specification used. By default, the latest: `3.1.0`.
* `summary`: A short summary of the API.
* `description`: The description of your API, this can include markdown and will be shown in the docs.

Aqui estão várias formas de se fazer isso.

## `schema_extra` do Pydantic

Você pode declarar um `example` para um modelo Pydantic usando `Config` e `schema_extra`, conforme descrito em <a href="https://docs.pydantic.dev/latest/concepts/json_schema/#schema-customization" class="external-link" target="_blank">Documentação do Pydantic: Schema customization</a>:

{* ../../docs_src/schema_extra_example/tutorial001.py hl[15:23] *}

 * without changing its state, so the tester needs a steady supply of fresh Iterators.
 *
 * <p>If your iterator supports modification through {@code remove()}, you may wish to override the
 * verify() method, which is called after each sequence and is guaranteed to be called
 * using the latest values obtained from {@link IteratorTester#newTargetIterator()}.
 *