* Data transfer object representing operating system statistics.
     */
    public static class OsObj {
        /**
         * Default constructor.
         */
        public OsObj() {
            // Default constructor
        }

        /** Memory statistics for the operating system. */
        public OsMemoryObj memory;
        /** CPU statistics for the operating system. */
        public OsCpuObj cpu;

    "tax": 3.2
}
```

## Resumen { #recap }

Puedes añadir múltiples parámetros de cuerpo a tu *path operation function*, aunque un request solo puede tener un único cuerpo.

Pero **FastAPI** lo manejará, te dará los datos correctos en tu función, y validará y documentará el esquema correcto en la *path operation*.

También puedes declarar valores singulares para ser recibidos como parte del cuerpo.

///

/// tip | İpucu

FastAPI'nin [VS Code için resmi bir eklentisi](https://marketplace.visualstudio.com/items?itemName=FastAPILabs.fastapi-vscode) (ve Cursor) vardır; path operation gezgini, path operation araması, testlerde CodeLens ile gezinme (testlerden tanıma atlama) ve FastAPI Cloud deploy ve logları gibi pek çok özelliği doğrudan editörünüzden sunar.

///

    },
}


class EventSourceResponse(StreamingResponse):
    """Streaming response with `text/event-stream` media type.

    Use as `response_class=EventSourceResponse` on a *path operation* that uses `yield`
    to enable Server Sent Events (SSE) responses.

    Works with **any HTTP method** (`GET`, `POST`, etc.), which makes it compatible
    with protocols like MCP that stream SSE over `POST`.

```TypeScript
ItemsService.createItemItemsPost({name: "Plumbus", price: 5})
```

...那是因為用戶端產生器對每個 *路徑操作* 都使用 OpenAPI 內部的**操作 ID（operation ID）**。

OpenAPI 要求每個操作 ID 在所有 *路徑操作* 之間必須唯一，因此 FastAPI 會用**函式名稱**、**路徑**與 **HTTP 方法/操作**來產生該操作 ID，如此便能確保操作 ID 的唯一性。

接下來我會示範如何把它變得更好看。🤓

## 自訂 Operation ID 與更好的方法名稱 { #custom-operation-ids-and-better-method-names }

你可以**修改**這些操作 ID 的**產生方式**，讓它們更簡潔，並在用戶端中得到**更簡潔的方法名稱**。

# Return a Response Directly { #return-a-response-directly }

When you create a **FastAPI** *path operation* you can normally return any data from it: a `dict`, a `list`, a Pydantic model, a database model, etc.

If you declare a [Response Model](../tutorial/response-model.md) FastAPI will use it to serialize the data to JSON, using Pydantic.

    return {"name": fake_items_db[item_id]["name"], "item_id": item_id}


@router.put(
    "/{item_id}",
    tags=["custom"],
    responses={403: {"description": "Operation forbidden"}},
)
async def update_item(item_id: str):
    if item_id != "plumbus":
        raise HTTPException(
            status_code=403, detail="You can only update the item: plumbus"
        )

    """
    Create an invoice.

    This will (let's imagine) let the API user (some external developer) create an
    invoice.

    And this path operation will:

    * Send the invoice to the client.
    * Collect the money from the client.
    * Send a notification back to the API user (the external developer), as a callback.

	healUnconsumedTimeout = 24 * time.Hour

	// time-duration to keep heal sequence state after it
	// completes.
	keepHealSeqStateDuration = time.Minute * 10

	// nopHeal is a no operating healing action to
	// wait for the current healing operation to finish
	nopHeal = ""
)

var (
	errHealIdleTimeout   = errors.New("healing results were not consumed for too long")
	errHealStopSignalled = errors.New("heal stop signaled")

        }
        load();
    }

    /**
     * Updates the processor configuration by reloading available searchers.
     * This method executes the load operation asynchronously in a separate thread.
     */
    public void update() {
        CommonPoolUtil.execute(this::load);
    }

    /**
     * Loads the available searcher names from system properties.