하지만 여전히 `response_model`을 사용하여 반환하는 데이터를 필터링하고 변환할 수 있기를 원합니다.

이런 경우에는 `Response` 파라미터를 사용할 수 있습니다.

## `Response` 파라미터 사용하기 { #use-a-response-parameter }

*경로 처리 함수*에 `Response` 타입의 파라미터를 선언할 수 있습니다. (쿠키와 헤더에 대해 선언하는 것과 유사하게)

그리고 이 *임시* 응답 객체에서 `status_code`를 설정할 수 있습니다.

{* ../../docs_src/response_change_status_code/tutorial001_py310.py hl[1,9,12] *}

   * that conversion is safe.
   *
   * <p>This method is intended to help with usages of type parameters that have {@linkplain
   * ParametricNullness parametric nullness}. If a type parameter instead ranges over only non-null
   * types (or if the type is a non-variable type, like {@code String}), then code should almost
   * never use this method, preferring instead to call {@code requireNonNull} so as to benefit from

   * that conversion is safe.
   *
   * <p>This method is intended to help with usages of type parameters that have {@linkplain
   * ParametricNullness parametric nullness}. If a type parameter instead ranges over only non-null
   * types (or if the type is a non-variable type, like {@code String}), then code should almost
   * never use this method, preferring instead to call {@code requireNonNull} so as to benefit from

    /**
     * Gets the user properties to use for interpolation and profile activation. The user properties have been
     * configured directly by the user on his discretion, e.g. via the {@code -Dkey=value} parameter on the command
     * line.
     *
     * @return The user properties, never {@code null}.
     */
    Map<String, String> getUserProperties();

    /**

# Модели Header-параметров { #header-parameter-models }

Если у вас есть группа связанных **header-параметров**, то вы можете объединить их в одну **Pydantic-модель**.

Это позволит вам **переиспользовать модель** в **разных местах**, а также задать валидацию и метаданные сразу для всех параметров. 😎

/// note | Заметка

Этот функционал доступен в FastAPI начиная с версии `0.115.0`. 🤓

///

            out[2 * i] = (byte) (chars[i] & 0xFF);
            out[2 * i + 1] = (byte) ((chars[i] >> 8) & 0xFF);
        }
        return out;
    }

    /**
     * Helper: create a buffer containing the parameter and data segments
     */
    private static byte[] createBuffer(int dataLen, byte[] dataBytes, String params) throws UnsupportedEncodingException {

Se por algum motivo você precisar desabilitar a conversão automática de sublinhados para hífens, defina o parâmetro `convert_underscores` de `Header` para `False`:

{* ../../docs_src/header_params/tutorial002_an_py310.py hl[10] *}

/// warning | Atenção

# Header 参数模型 { #header-parameter-models }

如果您有一组相关的 **header 参数**，您可以创建一个 **Pydantic 模型**来声明它们。

这将允许您在**多个地方**能够**重用模型**，并且可以一次性声明所有参数的验证和元数据。😎

/// note | 注意

自 FastAPI 版本 `0.115.0` 起支持此功能。🤓

///

## 使用 Pydantic 模型的 Header 参数 { #header-parameters-with-a-pydantic-model }

在 **Pydantic 模型**中声明所需的 **header 参数**，然后将参数声明为 `Header` :

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

    "field (e.g. Union[Response, dict, None]) you can disable generating the "
    "response model from the type annotation with the path operation decorator "
    "parameter response_model=None. Read more: "
    "https://fastapi.tiangolo.com/tutorial/response-model/"
)


def create_model_field(
    name: str,
    type_: Any,
    default: Any | None = Undefined,

    public void t(T t) {
      fail("Method with parameter <T extends @Nullable Object> should not be called");
    }

    public void u(U u) {
      fail(
          "Method with parameter <U extends T> where <T extends @Nullable Object> should not be"
              + " called");
    }

    public <A extends @Nullable Object> void a(A a) {
      fail("Method with parameter <A extends @Nullable Object> should not be called");