```Python
commons: Annotated[dict, Depends(common_parameters)]
```

Pero como estamos usando `Annotated`, podemos almacenar ese valor `Annotated` en una variable y usarlo en múltiples lugares:

{* ../../docs_src/dependencies/tutorial001_02_an_py310.py hl[12,16,21] *}

/// tip | Consejo

### Eine `HTTPException` in Ihrem Code auslösen

`HTTPException` ist eine normale Python-<abbr title="Exception – Ausnahme, Fehler: Python-Objekt, das einen Fehler nebst Metadaten repräsentiert">Exception</abbr> mit einigen zusätzlichen Daten, die für APIs relevant sind.

Weil es eine Python-Exception ist, geben Sie sie nicht zurück, (`return`), sondern Sie lösen sie aus (`raise`).

<span style="color: green;">INFO</span>:     Application startup complete.
```

</div>

/// note

La commande `uvicorn main:app` fait référence à :

* `main` : le fichier `main.py` (le module Python).
* `app` : l'objet créé dans `main.py` via la ligne `app = FastAPI()`.
* `--reload` : l'option disant à uvicorn de redémarrer le serveur à chaque changement du code. À ne pas utiliser en production !

///

```Python
commons: Annotated[dict, Depends(common_parameters)]
```

But because we are using `Annotated`, we can store that `Annotated` value in a variable and use it in multiple places:

{* ../../docs_src/dependencies/tutorial001_02_an_py310.py hl[12,16,21] *}

/// tip

This is just standard Python, it's called a "type alias", it's actually not specific to **FastAPI**.

* <a href="https://tartiflette.io/" class="external-link" target="_blank">🍟</a>
    * ⏮️ <a href="https://tartiflette.github.io/tartiflette-asgi/" class="external-link" target="_blank">🍟 🔫</a> 🚚 🔫 🛠️
* <a href="https://graphene-python.org/" class="external-link" target="_blank">⚗</a>
    * ⏮️ <a href="https://github.com/ciscorn/starlette-graphene3" class="external-link" target="_blank">💃-Graphene3️⃣</a>

## 🕹 ⏮️ 🍓

Por ejemplo, hay una <a href="https://hub.docker.com/_/python" class="external-link" target="_blank">Imagen de Python</a> oficial.

Y hay muchas otras imágenes para diferentes cosas como bases de datos, por ejemplo para:

# `APIRouter` class

Here's the reference information for the `APIRouter` class, with all its parameters, attributes and methods.

You can import the `APIRouter` class directly from `fastapi`:

```python
from fastapi import APIRouter
```

::: fastapi.APIRouter
    options:
        members:
            - websocket
            - include_router
            - get
            - put
            - post
            - delete

## 0.71.0

### Features

* ✨ Add docs and tests for Python 3.9 and Python 3.10. PR [#3712](https://github.com/tiangolo/fastapi/pull/3712) by [@tiangolo](https://github.com/tiangolo).
    * You can start with [Python Types Intro](https://fastapi.tiangolo.com/python-types/), it explains what changes between different Python versions, in Python 3.9 and in Python 3.10.

Read more about it in the [FastAPI docs for Testing](https://fastapi.tiangolo.com/tutorial/testing/).

You can import it directly from `fastapi.testclient`:

```python
from fastapi.testclient import TestClient
```

    * Mit <a href="https://tartiflette.github.io/tartiflette-asgi/" class="external-link" target="_blank">Tartiflette ASGI</a>, für ASGI-Integration
* <a href="https://graphene-python.org/" class="external-link" target="_blank">Graphene</a>
    * Mit <a href="https://github.com/ciscorn/starlette-graphene3" class="external-link" target="_blank">starlette-graphene3</a>

## GraphQL mit Strawberry