class Session:
    def __init__(self) -> None:
        self.open = True


def dep_session() -> Any:
    s = Session()
    yield s
    s.open = False


def raise_after_yield() -> Any:
    yield
    raise HTTPException(status_code=503, detail="Exception after yield")


SessionFuncDep = Annotated[Session, Depends(dep_session, scope="function")]

///

Dependências com `yield` evoluíram ao longo do tempo para contemplar diferentes casos de uso e corrigir alguns problemas, aqui está um resumo do que mudou.

### Dependências com `yield` e `scope` { #dependencies-with-yield-and-scope }

Na versão 0.121.0, o FastAPI adicionou suporte a `Depends(scope="function")` para dependências com `yield`.

                return baseConfig.getQueryAdditionalCacheResponseFields(fields);
            }

            @Override
            public String[] getQueryAdditionalHighlightedFields(String... fields) {
                return baseConfig.getQueryAdditionalHighlightedFields(fields);
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {

0.121.0 버전에서 FastAPI는 `Depends(scope="function")` 지원을 추가했습니다.

`Depends(scope="function")`를 사용하면, `yield` 이후의 종료 코드는 *경로 처리 함수*가 끝난 직후(클라이언트에 응답이 반환되기 전)에 실행됩니다.

그리고 `Depends(scope="request")`(기본값)를 사용하면, `yield` 이후의 종료 코드는 응답이 전송된 후에 실행됩니다.

자세한 내용은 [`yield`가 있는 의존성 - 조기 종료와 `scope`](../tutorial/dependencies/dependencies-with-yield.md#early-exit-and-scope) 문서를 참고하세요.

            if self.open:
                yield item
            else:
                raise ValueError("Session closed")


@contextmanager
def acquire_session() -> Generator[Session, None, None]:
    session = Session()
    try:
        yield session
    finally:
        session.open = False


def dep_session() -> Any:
    with acquire_session() as s:
        yield s


def broken_dep_session() -> Any:

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

    with read_image() as image_file:
        for chunk in image_file:
            yield chunk


@app.get("/image/stream-no-async", response_class=PNGStreamingResponse)
def stream_image_no_async() -> Iterable[bytes]:
    with read_image() as image_file:
        for chunk in image_file:
            yield chunk


@app.get("/image/stream-no-async-yield-from", response_class=PNGStreamingResponse)

            async for item in iterate_in_threadpool(func(*args, **kwargs)):
                yield item

        return gen_wrapper

    elif inspect.isasyncgenfunction(func):

        @wraps(func)
        async def async_gen_wrapper(*args, **kwargs):
            async for item in func(*args, **kwargs):
                yield item

        return async_gen_wrapper

    @wraps(func)

	test1ActiveBuckets2[BucketOptions{Name: "bucket", ReplicationARN: "arn"}] = m1MiBPS

	tests := []struct {
		name   string
		fields fields
		want   *BucketBandwidthReport
		want2  *BucketBandwidthReport
	}{
		{
			name: "ZeroToOne",
			fields: fields{
				activeBuckets: test1ActiveBuckets,
				endTime:       start.Add(1 * time.Second),
				update2:       oneMiB,

class CustomError(Exception):
    pass


def catching_dep() -> Any:
    try:
        yield "s"
    except CustomError as err:
        raise HTTPException(status_code=418, detail="Session error") from err


def broken_dep() -> Any:
    yield "s"
    raise ValueError("Broken after yield")


app = FastAPI()


@app.get("/catching")
def catching(d: Annotated[str, Depends(catching_dep)]) -> Any: