Da einfache Werte standardmäßig als Query-Parameter interpretiert werden, müssen Sie `Query` nicht explizit hinzufügen, Sie können einfach schreiben:

```Python
q: Union[str, None] = None
```

Oder in Python 3.10 und darüber:

```Python
q: str | None = None
```

Zum Beispiel:

{* ../../docs_src/body_multiple_params/tutorial004_an_py310.py hl[27] *}

/// info

As, by default, singular values are interpreted as query parameters, you don't have to explicitly add a `Query`, you can just do:

```Python
q: Union[str, None] = None
```

Or in Python 3.10 and above:

```Python
q: str | None = None
```

For example:

{* ../../docs_src/body_multiple_params/tutorial004_an_py310.py hl[28] *}


/// info

### Node Binaries

filename | sha512 hash
-------- | -----------
[kubernetes-node-linux-amd64.tar.gz](https://dl.k8s.io/v1.27.16/kubernetes-node-linux-amd64.tar.gz) | 55532060b056be6c499b8d8cb5884827ae9b25d953d03611880264d96c164f3648c662e5b2b653d081242eb407811ecd873637c38ab0678654339a60774b1016

		total:             "Total memory on the node",
		memUsed:           "Used memory on the node",
		memUsedPerc:       "Used memory percentage on the node",
		memFree:           "Free memory on the node",
		memShared:         "Shared memory on the node",
		memBuffers:        "Buffers memory on the node",
		memCache:          "Cache memory on the node",
		memAvailable:      "Available memory on the node",

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}


@app.put("/items/{item_id}")

    * Siccome il parametro `q` è dichiarato con `= None`, è opzionale.
    * Senza il `None` sarebbe stato obbligatorio (come per il body della richiesta `PUT`).
* Per le richieste `PUT` su `/items/{item_id}`, leggerà il body come JSON, questo comprende:
    * verifica che la richiesta abbia un attributo obbligatorio `name` e che sia di tipo `str`.

        }

        /**
         * Get the source node for move operations
         *
         * @return source node name
         */
        public String getSourceNode() {
            return sourceNode;
        }

        /**
         * Sets the source node for move operations.
         *
         * @param sourceNode the name of the source node in a share move operation
         */

                }
            }
        }
    }

    /** SID name type: none. */
    /** SID name type: none or unused. */
    public static final int SID_NAME_USE_NONE = 0;
    /** SID name type: user. */
    /** SID name type: user account. */
    public static final int SID_NAME_USER = 1;
    /** SID name type: domain group. */
    /** SID name type: domain group. */
    public static final int SID_NAME_DOM_GRP = 2;

        bb.position(54);
        String altPath = "\\\\alt\\path";
        bb.put(altPath.getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        // Node string at offset 76
        bb.position(76);
        String node = "NODE01";
        bb.put(node.getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        // Decode
        int decodedSize = referral.decode(testBuffer, 0, testBuffer.length);

Поскольку по умолчанию, отдельные значения интерпретируются как query-параметры, вам не нужно явно добавлять `Query`, вы можете просто сделать так:

```Python
q: Union[str, None] = None
```

Или в Python 3.10 и выше:

```Python
q: str | None = None
```

Например:

{* ../../docs_src/body_multiple_params/tutorial004_an_py310.py hl[27] *}

/// info | Информация