## operationId do OpenAPI { #openapi-operationid }

/// warning | Atenção

Se você não é um "especialista" no OpenAPI, você provavelmente não precisa disso.

///

Você pode definir o `operationId` do OpenAPI que será utilizado na sua *operação de rota* com o parâmetro `operation_id`.

Você deveria ter certeza que ele é único para cada operação.

{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py310.py hl[6] *}

    assert response2.status_code == 200, response2.text
    assert response2.json() == [1, 2]


def test_propagates_pydantic2_model_config():
    app = FastAPI()

    class Missing:
        def __bool__(self):
            return False

    class EmbeddedModel(BaseModel):
        model_config = ConfigDict(arbitrary_types_allowed=True)
        value: str | Missing = Missing()

    class Model(BaseModel):

Ce n'est pas une limitation de **FastAPI**, cela fait partie du protocole HTTP.

///

## Récapitulatif { #recap }

Vous pouvez en réalité omettre cet en‑tête supplémentaire et cela fonctionnerait quand même.

Mais il est fourni ici pour être conforme aux spécifications.

De plus, il peut exister des outils qui l'attendent et l'utilisent (maintenant ou à l'avenir) et cela pourrait vous être utile, à vous ou à vos utilisateurs, maintenant ou à l'avenir.

C'est l'avantage des standards ...

            <child>child</child>
          </defaults>
          <appends combine.children="append">
            <parent>child</parent>
            <child>child</child>
          </appends>
          <overrides combine.self="override">
            <parent>child</parent>
            <child>child</child>
          </overrides>
        </configuration>
      </plugin>
    </plugins>
  </build>

    if: github.repository == 'tensorflow/tensorflow' && (github.event.action != 'labeled' || (github.event.action == 'labeled' && github.event.label.name == 'kokoro:force-run'))
    runs-on: [self-hosted, linux, ARM64]
    strategy:
      matrix:
        pyver: ['3.10']
    steps:
      - name: Stop old running containers (if any)
        shell: bash
        run: |

## Классы как зависимости { #classes-as-dependencies_1 }

Вы можете заметить, что для создания экземпляра класса в Python используется тот же синтаксис.

Например:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

В данном случае `fluffy` является экземпляром класса `Cat`.

А чтобы создать `fluffy`, вы «вызываете» `Cat`.

Examples:

Source (English):

```
...as we intended.
...this would work:
...etc.
others...
More to come...
```

Result (French):

```
... comme prévu.
... cela fonctionnerait :
... etc.
D'autres ...
La suite ...
```

- This does not apply in URLs, code blocks, and code snippets. Do not remove or add spaces there.

### Headings

Ele será gerado apenas uma vez, e o mesmo esquema armazenado em cache será utilizado nas próximas requisições.

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}

### Sobrescrever o método { #override-the-method }

Agora, você pode substituir o método `.openapi()` pela sua nova função.

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