```json
{
    "description": "Some data",
    "data": "aGVsbG8="
}
```

/// tip | 팁

`aGVsbG8=`는 `hello`의 base64 인코딩입니다.

///

그러면 Pydantic이 base64 문자열을 디코딩하여 모델의 `data` 필드에 원래 바이트를 제공합니다.

다음과 같은 응답을 받게 됩니다:

```json
{
  "description": "Some data",
  "content": "hello"
}
```

## 출력 데이터용 Pydantic `bytes` { #pydantic-bytes-for-output-data }

Et cette fonction prend des paramètres de la même manière que les fonctions de chemins d’accès.

/// tip | Astuce

Vous verrez quelles autres « choses », en plus des fonctions, peuvent être utilisées comme dépendances dans le prochain chapitre.

///

Chaque fois qu’une nouvelle requête arrive, **FastAPI** se charge de :

import uvicorn
from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def root():
    a = "a"
    b = "b" + a
    return {"hello world": b}


if __name__ == "__main__":

  }

  public void testScheduleCallable() throws Exception {
    Callable<String> callable = () -> "hello";

    ListenableScheduledFuture<String> future =
        executorService.schedule(callable, Duration.ofMinutes(12));

    assertThat(future.get()).isEqualTo("hello");
    assertThat(recordedTimeUnit).isEqualTo(NANOSECONDS);
    assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofMinutes(12));

                return null;
            }
        });

        mimeTypeHelper.init();

        // Null config means no override
        try (InputStream is = new ByteArrayInputStream("Hello world".getBytes(StandardCharsets.UTF_8))) {
            assertEquals("text/plain", mimeTypeHelper.getContentType(is, "test.txt"));
        }
    }

    @Test
    public void test_init_singleMapping() throws IOException {

        final JobLog jobLog = new JobLog(scheduledJob);

        assertEquals("Test Job", jobLog.getJobName());
        assertEquals("groovy", jobLog.getScriptType());
        assertEquals("println 'hello'", jobLog.getScriptData());
        assertEquals(Constants.RUNNING, jobLog.getJobStatus());
        assertNotNull(jobLog.getStartTime());
        assertNotNull(jobLog.getLastUpdated());

    return item_group


@app.post("/tuple-of-models/")
def post_tuple_of_models(square: tuple[Coordinate, Coordinate]):
    return square


@app.post("/tuple-form/")
def hello(values: tuple[int, int] = Form()):
    return values


client = TestClient(app)


def test_model_with_tuple_valid():
    data = {"items": [["foo", "bar"], ["baz", "whatelse"]]}

    ],
    root_path="/api/v1",
    root_path_in_servers=False,
)


@app.get("/app")
def read_main(request: Request):

hello world dir/bar foo readonly important...

{"hello":"wor{l}d"}...