assertThat(buffer.readByteString()).isEqualTo("A20743054A6F6E6573".decodeHex())
  }

  @Test fun `decode implicit tagged implicit prefixed type`() {
    // Type1 ::= VisibleString
    // Type2 ::= [APPLICATION 3] IMPLICIT Type1
    // Type3 ::= [2] Type2
    // Type4 ::= [APPLICATION 7] IMPLICIT Type3
    val buffer =
      Buffer()
        .write("670743054A6F6E6573".decodeHex())

    val derReader = DerReader(buffer)

同じタイミングで`Ctrl+Space`で自動補完を実行すると、以下のようになります:

<img src="https://fastapi.tiangolo.com/img/python-types/image02.png">

これであれば、あなたは「ベルを鳴らす」一つを見つけるまで、オプションを見て、スクロールすることができます:

<img src="https://fastapi.tiangolo.com/img/python-types/image03.png">

## より強い動機

この関数を見てください。すでに型ヒントを持っています:

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial003.py!}
```

エディタは変数の型を知っているので、補完だけでなく、エラーチェックをすることもできます。

<img src="/img/python-types/image02.png">

⏮️ 👈, 👆 💪 📜, 👀 🎛, ⏭ 👆 🔎 1️⃣ 👈 "💍 🔔":

<img src="/img/python-types/image03.png">

## 🌅 🎯

✅ 👉 🔢, ⚫️ ⏪ ✔️ 🆎 🔑:

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial003.py!}
```

↩️ 👨‍🎨 💭 🆎 🔢, 👆 🚫 🕴 🤚 🛠️, 👆 🤚 ❌ ✅:

<img src="/img/python-types/image04.png">

* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - for extra types to be used with Pydantic.

Used by Starlette:

* <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Required if you want to use the `TestClient`.

---

## **Typer**, le FastAPI des <abbr title="Command Line Interface">CLI</abbr>

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

---

## Komut Satırı Uygulamalarının FastAPI'ı: **Typer**

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

---

## **Typer**, FastAPI CLI

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

Створюючи <abbr title="Command Line Interface">CLI</abbr> застосунок для використання в терміналі, замість веб-API зверніть увагу на <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.

### Config Translation

Config Translation turns the above inputs into the actual types consumed by the connected XDS clients (typically Envoy). This is done by `Generators`, which register a function to build a given type. For example, there is a `RouteGenerator` responsible for building `Routes`. Along with the core Envoy XDS types, there are a few custom Istio types, such as our `NameTable` type used for DNS, as well as debug interfaces.

These types that have internal types are called "**generic**" types. And it's possible to declare them, even with their internal types.

To declare those types and the internal types, you can use the standard Python module `typing`. It exists specifically to support these type hints.

#### Newer versions of Python

Jeśli potrzebujesz szybkiego przypomnienia jak używać deklaracji typów w Pythonie (nawet jeśli nie używasz FastAPI), sprawdź krótki samouczek: [Python Types](python-types.md){.internal-link target=_blank}.

Wystarczy, że napiszesz standardowe deklaracje typów Pythona:

```Python
from datetime import date

from pydantic import BaseModel

# Zadeklaruj parametr jako str