}
  }

  /**
   * Implementation of {@link Stream#flatMap} with an object spliterator output type.
   *
   * <p>To avoid having this type, we could use {@code FlatMapSpliterator} directly. The main
   * advantages to having the type are the ability to use its constructor reference below and the
   * parallelism with the primitive version. In short, it makes its caller ({@code flatMap})
   * simpler.
   *

    }
  }

  /**
   * Implementation of {@link Stream#flatMap} with an object spliterator output type.
   *
   * <p>To avoid having this type, we could use {@code FlatMapSpliterator} directly. The main
   * advantages to having the type are the ability to use its constructor reference below and the
   * parallelism with the primitive version. In short, it makes its caller ({@code flatMap})
   * simpler.
   *

This is just a **quick tutorial / refresher** about Python type hints. It covers only the minimum necessary to use them with **FastAPI**... which is actually very little.

**FastAPI** is all based on these type hints, they give it many advantages and benefits.

But even if you never use **FastAPI**, you would benefit from learning a bit about them.

/// note

If you are a Python expert, and you already know everything about type hints, skip to the next chapter.

따라서 (가능하면) 다음과 같이 사용합니다:

```Python
q: Annotated[str, Query()] = "rick"
```

...또는 오래된 코드베이스에서는 다음과 같은 코드를 찾게 될 것입니다:

```Python
q: str = Query(default="rick")
```

### `Annotated`의 장점 { #advantages-of-annotated }

함수 매개변수의 기본값 방식 대신 **`Annotated`를 사용하는 것을 권장**합니다. 여러 이유로 **더 좋기** 때문입니다. 🤓

**함수 매개변수**의 **기본값**이 **실제 기본값**이 되므로, 전반적으로 Python에 더 직관적입니다. 😌

does Less to protect the user's freedom than the ordinary General
Public License.  It also provides other free software developers Less
of an advantage over competing non-free programs.  These disadvantages
are the reason we use the ordinary General Public License for many
libraries.  However, the Lesser license provides advantages in certain
special circumstances.

  For example, on rare occasions, there may be a special need to

Using Linux containers has several advantages including **security**, **replicability**, **simplicity**, and others.

/// tip

In a hurry and already know this stuff? Jump to the [`Dockerfile` below 👇](#build-a-docker-image-for-fastapi).

///

<details>

そのため、（できれば）次のようにします:

```Python
q: Annotated[str, Query()] = "rick"
```

...または、古いコードベースでは次のようなものが見つかるでしょう:

```Python
q: str = Query(default="rick")
```

### `Annotated` の利点 { #advantages-of-annotated }

関数パラメータのデフォルト値スタイルではなく、**`Annotated` を使うことが推奨** されます。複数の理由で **より良い** からです。 🤓

**関数パラメータ** の **デフォルト値** は **実際のデフォルト値** であり、Python 全般としてより直感的です。 😌

```Python
q: Annotated[str, Query()] = "rick"
```

... ou dans des bases de code plus anciennes, vous trouverez :

```Python
q: str = Query(default="rick")
```

### Avantages de `Annotated` { #advantages-of-annotated }

**L’utilisation de `Annotated` est recommandée** plutôt que la valeur par défaut dans les paramètres de fonction, c’est **mieux** pour plusieurs raisons. 🤓

```Python
q: Annotated[str, Query()] = "rick"
```

...або у старих кодових базах ви знайдете:

```Python
q: str = Query(default="rick")
```

### Переваги використання `Annotated` { #advantages-of-annotated }

Використання `Annotated` є рекомендованим замість задання значення за замовчуванням у параметрах функції, оскільки воно краще з кількох причин. 🤓

```Python
q: Annotated[str, Query()] = "rick"
```

...или в старой кодовой базе вы увидите:

```Python
q: str = Query(default="rick")
```

### Преимущества `Annotated` { #advantages-of-annotated }

**Рекомендуется использовать `Annotated`** вместо задания значения по умолчанию в параметрах функции — так **лучше** по нескольким причинам. 🤓