## List of buckets to be created after minio install
##
buckets:
  []
  #   # Name of the bucket
  # - name: bucket1
  #   # Policy to be set on the
  #   # bucket [none|download|upload|public]
  #   policy: none
  #   # Purge if bucket exists already
  #   purge: false
  #   # set versioning for
  #   # bucket [true|false]
  #   versioning: false # remove this key if you do not want versioning feature

```Python
say_hi(name=None)  # Bu çalışır, None geçerlidir 🎉
```

İyi haber şu ki, çoğu durumda tip birliklerini (union) tanımlamak için doğrudan `|` kullanabilirsiniz:

```python
def say_hi(name: str | None):
    print(f"Hey {name}!")
```

    age: int | None = Field(default=None, index=True)


class Hero(HeroBase, table=True):
    id: int | None = Field(default=None, primary_key=True)
    secret_name: str


class HeroPublic(HeroBase):
    id: int


class HeroCreate(HeroBase):
    secret_name: str


class HeroUpdate(HeroBase):
    name: str | None = None
    age: int | None = None
    secret_name: str | None = None

            "overridden": "app",
        }


def test_merged_no_return_lifespans_return_none() -> None:
    @asynccontextmanager
    async def lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
        yield

    @asynccontextmanager
    async def router_lifespan(app: FastAPI) -> AsyncGenerator[None, None]:
        yield

    router = APIRouter(lifespan=router_lifespan)
    app = FastAPI(lifespan=lifespan)

```Python
say_hi(name=None)  # Das funktioniert, None ist gültig 🎉
```

Die gute Nachricht ist: In den meisten Fällen können Sie einfach `|` verwenden, um Unions von Typen zu definieren:

```python
def say_hi(name: str | None):
    print(f"Hey {name}!")
```

@app.post("/optional-bytes", operation_id="optional_bytes")
async def read_optional_bytes(p: Annotated[bytes | None, File()] = None):
    return {"file_size": len(p) if p else None}


@app.post("/optional-uploadfile", operation_id="optional_uploadfile")
async def read_optional_uploadfile(p: Annotated[UploadFile | None, File()] = None):
    return {"file_size": p.size if p else None}


@pytest.mark.parametrize(
    "path",
    [
        "/optional-bytes",

O parâmetro `name` continua obrigatório (não é opcional) porque não tem valor padrão. Ainda assim, `name` aceita `None` como valor:

```Python
say_hi(name=None)  # Isso funciona, None é válido 🎉
```

A boa notícia é que, na maioria dos casos, você poderá simplesmente usar `|` para definir uniões de tipos:

```python
def say_hi(name: str | None):
    print(f"Hey {name}!")
```

```Python
say_hi(name=None)  # Ceci fonctionne, None est valide 🎉
```

La bonne nouvelle, c'est que, dans la plupart des cas, vous pourrez simplement utiliser `|` pour définir des unions de types :

```python
def say_hi(name: str | None):
    print(f"Hey {name}!")
```

            "price": 50.5,
            "description": None,
            "tax": None,
        },
        "user": {"username": "Dave", "full_name": None},
    }


def test_put_missing_body(client: TestClient):
    response = client.put("/items/5")
    assert response.status_code == 422
    assert response.json() == {
        "detail": [
            {
                "input": None,
                "loc": [

But if you have specified a custom response class with `None` as its media type, FastAPI will use `application/json` for any additional response that has an associated model.

///

## Combining information { #combining-information }