Or it might be the case that you just prefer to take other courses because they adapt better to your learning style.

Some course providers ✨ [**sponsor FastAPI**](../help-fastapi.md#sponsor-the-author){.internal-link target=_blank} ✨, this ensures the continued and healthy **development** of FastAPI and its **ecosystem**.

```Python hl_lines="8 9"
{!../../../docs_src/dependencies/tutorial001.py!}
```

これだけです。

**２行**。

そして、それはすべての*path operation関数*が持っているのと同じ形と構造を持っています。

「デコレータ」を含まない（`@app.get("/some-path")`を含まない）*path operation関数*と考えることもできます。

そして何でも返すことができます。

この場合、この依存関係は以下を期待しています:

* オプショナルのクエリパラメータ`q`は`str`です。
* オプショナルのクエリパラメータ`skip`は`int`で、デフォルトは`0`です。
* オプショナルのクエリパラメータ`limit`は`int`で、デフォルトは`100`です。

main [Tutorial - User Guide: Security](../../tutorial/security/index.md){.internal-link target=_blank}.

They are all based on the same concepts, but allow some extra functionalities....

    When you install with `pip install fastapi` it comes with some default optional standard dependencies.

    If you don't want to have those optional dependencies, you can instead install `pip install fastapi-slim`.

## Advanced User Guide

There is also an **Advanced User Guide** that you can read later after this **Tutorial - User guide**.

The **Advanced User Guide**, builds on this, uses the same concepts, and teaches you some extra features.

I will show you some of the main concepts you should probably keep in mind when deploying a **FastAPI** application (although most of it applies to any other type of web application).