Python itself doesn't do anything with this `Annotated`. And for editors and other tools, the type is still `str`.

But you can use this space in `Annotated` to provide **FastAPI** with additional metadata about how you want your application to behave.

The important thing to remember is that **the first *type parameter*** you pass to `Annotated` is the **actual type**. The rest, is just metadata for other tools.

```

🤙 👉 📋 🔢:

```
John Doe
```

🔢 🔨 📄:

* ✊ `first_name` & `last_name`.
* 🗜 🥇 🔤 🔠 1️⃣ ↖ 💼 ⏮️ `title()`.
* <abbr title="Puts them together, as one. With the contents of one after the other.">🔢</abbr> 👫 ⏮️ 🚀 🖕.

```Python hl_lines="2"
{!../../../docs_src/python_types/tutorial001.py!}
```

### ✍ ⚫️

⚫️ 📶 🙅 📋.

✋️ 🔜 🌈 👈 👆 ✍ ⚫️ ⚪️➡️ 🖌.

☝ 👆 🔜 ✔️ ▶️ 🔑 🔢, 👆 ✔️ 🔢 🔜...

    * `list`
    * `tuple`
    * `set`
    * `dict`

    Và tương tự với Python 3.6, từ mô đun `typing`:

    * `Union`
    * `Optional`
    * ...and others.

=== "Python 3.8+"

    * `List`
    * `Tuple`
    * `Set`
    * `Dict`
    * `Union`
    * `Optional`
    * ...và các kiểu khác.

### Lớp như kiểu dữ liệu

#### Generic tipler

Köşeli parantez içinde tip parametreleri alan bu türler, örneğin:

* `List`
* `Tuple`
* `Set`
* `Dict`
* `Optional`
* ...and others.

**Generic types** yada  **Generics** olarak adlandırılır.

### Tip olarak Sınıflar

Bir değişkenin tipini bir sınıf ile bildirebilirsiniz.

Diyelim ki  `name` değerine sahip `Person` sınıfınız var: