That also applies to callables with no parameters at all. The same as it would be for *path operation functions* with no parameters.

Then, we can change the dependency "dependable" `common_parameters` from above to the class `CommonQueryParams`:

=== "Python 3.10+"

    ```Python hl_lines="11-15"
    {!> ../../../docs_src/dependencies/tutorial002_an_py310.py!}

    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> dep: Raise other exception
    end
    Note over dep: After yield
    opt Handle other exception
        dep -->> dep: Handle exception, can't change response. E.g. close DB session.
    end
```

    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> dep: Raise other exception
    end
    Note over dep: After yield
    opt Handle other exception
        dep -->> dep: Handle exception, can't change response. E.g. close DB session.
    end
```

!!! info

📥 🖼 ❔ 🇺🇸🔍 🛠️ 💪 👀 💖, 🔁 🔁, 💸 🙋 ✴️ 💭 ⚠ 👩‍💻.

### 🆔 📛

⚫️ 🔜 🎲 🌐 ▶️ 👆 **🏗** **🆔 📛**. ⤴️, 👆 🔜 🔗 ⚫️ 🏓 💽 (🎲 👆 🎏 ☁ 🐕‍🦺).

👆 🔜 🎲 🤚 ☁ 💽 (🕹 🎰) ⚖️ 🕳 🎏, &amp; ⚫️ 🔜 ✔️ <abbr title="That doesn't change">🔧</abbr> **📢 📢 📢**.

🏓 💽(Ⓜ) 👆 🔜 🔗 ⏺ ("`A record`") ☝ **👆 🆔** 📢 **📢 📢 👆 💽**.

👆 🔜 🎲 👉 🕐, 🥇 🕰, 🕐❔ ⚒ 🌐 🆙.

!!! tip
    👉 🆔 📛 🍕 🌌 ⏭ 🇺🇸🔍, ✋️ 🌐 🪀 🔛 🆔 &amp; 📢 📢, ⚫️ 💸 💬 ⚫️ 📥.

 │  fastapi run                                        │
 │                                                     │
 ╰─────────────────────────────────────────────────────╯

INFO:     Will watch for changes in these directories: ['/home/user/code/awesomeapp']
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [2248755] using WatchFiles

## 기본값 변경

Dennoch besteht in beiden Fällen eine gute Chance, dass **FastAPI** [immer noch schneller](index.md#performanz){.internal-link target=_blank} als Ihr bisheriges Framework (oder zumindest damit vergleichbar) ist.

### Abhängigkeiten

* <a href="https://github.com/tiangolo/uvicorn-gunicorn-fastapi-docker" class="external-link" target="_blank">tiangolo/uvicorn-gunicorn-fastapi</a>.

!!! warning
    Existe uma grande chance de que você **não** precise dessa imagem base ou de qualquer outra semelhante, e seria melhor construir a imagem do zero, como [descrito acima em: Construa uma Imagem Docker para o FastAPI](#construindo-uma-imagem-docker-para-fastapi).

                )
                raise validation_error
        if response is None:
            raise FastAPIError(
                "No response object was returned. There's a high chance that the "
                "application code is raising an exception and a dependency with yield "
                "has a block with a bare except, or a block with except Exception, "