)
    val call1 =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    val response1 = call1.execute()
    assertThat(response1.body.string()).isEqualTo("abc")
    response1.close()

    // Force a fresh connection for the next request.
    client.connectionPool.evictAll()

            // When & Then
            assertEquals(0, response.writeBytesWireFormat(dst, 0));
            assertEquals(0, response.writeBytesWireFormat(dst, 25));
            assertEquals(0, response.writeBytesWireFormat(dst, 50));
            assertEquals(0, response.writeBytesWireFormat(dst, 75));
            assertEquals(0, response.writeBytesWireFormat(dst, 99));
        }

        @Test

async def dep0(response: Response):
    response.headers["x-level0"] = "True"


async def dep1(response: Response):
    response.headers["x-level1"] = "True"


async def dep2(response: Response):
    response.headers["x-level2"] = "True"


async def dep3(response: Response):
    response.headers["x-level3"] = "True"


async def dep4(response: Response):

    assert "redoc@2" in response.text


def test_enum_status_code_response():
    response = client.get("/enum-status-code")
    assert response.status_code == 201, response.text
    assert response.json() == "foo bar"


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

def test_a():
    response = client.get("/a")
    assert response.status_code == 200, response.text
    assert response.json() == "a"


def test_b():
    response = client.get("/b")
    assert response.status_code == 200, response.text
    assert response.json() == "b"


def test_c():
    response = client.get("/c")
    assert response.status_code == 200, response.text
    assert response.json() == "c"

І інструменти також будуть задоволені, бо і `RedirectResponse`, і `JSONResponse` є підкласами `Response`, отже анотація типу коректна.

### Анотація підкласу Response

Також можна використовувати підклас `Response` у анотації типу:

{* ../../docs_src/response_model/tutorial003_03.py hl[8:9] *}

Це теж працюватиме, бо `RedirectResponse` — підклас `Response`, і FastAPI автоматично обробить цей простий випадок.

И инструменты тоже будут довольны, потому что и `RedirectResponse`, и `JSONResponse` являются подклассами `Response`, так что аннотация типа корректна.

### Аннотировать подкласс Response { #annotate-a-response-subclass }

Вы также можете использовать подкласс `Response` в аннотации типа:

{* ../../docs_src/response_model/tutorial003_03_py39.py hl[8:9] *}

def test_read_dict():
    response = client.get("/dict")
    assert response.status_code == 200, response.text
    assert response.json() == {"name": "Foo"}


def test_read_model():
    response = client.get("/model")
    assert response.status_code == 200, response.text
    assert response.json() == {"name": "Foo"}


def test_read_list():
    response = client.get("/list")

                    },
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {
                                "application/json": {
                                    "schema": {
                                        "title": "Response Foo Post Root",
                                        "type": "array",

    responses={500: {"description": "Error", "model": JsonApiError}},
)
async def a():
    pass  # pragma: no cover


@app.get("/b", responses={500: {"description": "Error", "model": Error}})
async def b():
    pass  # pragma: no cover


client = TestClient(app)


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {