**FastAPI** utilizará ese response *temporal* para extraer las cookies (también los headers y el código de estado), y las pondrá en el response final que contiene el valor que devolviste, filtrado por cualquier `response_model`.

También puedes declarar el parámetro `Response` en las dependencias, y establecer cookies (y headers) en ellas.

## Devolver una `Response` directamente { #return-a-response-directly }

    )

    val call = client.newCall(Request(server.url("/")))
    call.execute().use { response ->
      assertThat(response.headers["Content-Length"]).isNull()
      assertThat(response.body.source().readUtf8()).isEqualTo("Hello")
      assertThat(response.trailers()).isEqualTo(Headers.EMPTY)
    }
  }

  @Test
  fun cancelWhileReadingTrailersHttp1() {
    cancelWhileReadingTrailers(Protocol.HTTP_1_1)
  }

async def read_items():
    return {"id": "foo"}


client = TestClient(app)


def test_swagger_ui():
    response = client.get("/docs")
    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"
    assert "swagger-ui-dist" in response.text
    print(client.base_url)
    assert (
        f"oauth2RedirectUrl: window.location.origin + '{swagger_ui_oauth2_redirect_url}'"

    val headers = response.headers
    assertThat(headers.size).isEqualTo(1)
    assertThat(headers.name(0)).isEqualTo(":version")
    assertThat(headers.value(0)).isEqualTo("HTTP/1.1")
  }

  @Test fun http2HeadersListDropsForbiddenHeadersHttp2() {
    val request =
      Request
        .Builder()
        .url("http://square.com/")
        .header("Connection", "upgrade")

}

// Return canonical headers.
func canonicalizedAmzHeadersV2(headers http.Header) string {
	var keys []string
	keyval := make(map[string]string, len(headers))
	for key := range headers {
		lkey := strings.ToLower(key)
		if !strings.HasPrefix(lkey, "x-amz-") {
			continue
		}
		keys = append(keys, lkey)
		keyval[lkey] = strings.Join(headers[key], ",")
	}
	sort.Strings(keys)

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto" class="external-link" target="_blank">X-Forwarded-Proto</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host" class="external-link" target="_blank">X-Forwarded-Host</a>

///

### Proxy-Forwarded-Header aktivieren { #enable-proxy-forwarded-headers }

    return {"scheme": credentials.scheme, "credentials": credentials.credentials}


client = TestClient(app)


def test_security_http_base():
    response = client.get("/users/me", headers={"Authorization": "Other foobar"})
    assert response.status_code == 200, response.text
    assert response.json() == {"scheme": "Other", "credentials": "foobar"}


def test_security_http_base_no_credentials():

    }

    /**
     * Processes the CORS request by adding standard CORS headers to the response.
     * Headers include allowed origin, methods, headers, max age, and credentials setting.
     *
     * @param origin the origin of the request
     * @param request the servlet request
     * @param response the servlet response to add CORS headers to
     */
    @Override

  mockwebserver3.PushPromise(
    method = method,
    path = path,
    headers = headers,
    response = response.wrap(),
  )

internal fun mockwebserver3.RecordedRequest.unwrap(): RecordedRequest =
  RecordedRequest(
    requestLine = requestLine,
    headers = headers,
    chunkSizes = chunkSizes ?: listOf(),
    bodySize = bodySize,

    assert response.status_code == 401, response.text
    assert response.headers["WWW-Authenticate"] == 'Basic realm="simple"'


def test_security_http_basic_invalid_credentials():
    response = client.get(
        "/users/me", headers={"Authorization": "Basic notabase64token"}
    )
    assert response.status_code == 401, response.text
    assert response.headers["WWW-Authenticate"] == 'Basic realm="simple"'