If you install Typer CLI, you can install completion with:

<div class="termy">

```console
$ typer --install-completion

zsh completion installed in /home/user/.bashrc.
Completion will take effect once you restart the terminal.
```

</div>

### Docs Structure

          # retainVersions: 5 # keep the latest 5 versions of the object including delete markers.

  notify:
    endpoint: https://notify.endpoint # notification endpoint to receive job completion status
    token: Bearer xxxxx # optional authentication token for the notification endpoint
  
  retry:
    attempts: 10 # number of retries for the job before giving up

## For the release team

The `relnote` tool, at `golang.org/x/build/cmd/relnote`, operates on the files
in `doc/next`.

As a release cycle nears completion, run `relnote todo` to get a list of
unfinished release note work.

To prepare the release notes for a release, run `relnote generate`.
That will merge the `.md` files in `next` into a single file.

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

* в <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

Вы будете получать автодополнение кода даже там, где вы считали это невозможным раньше.

![soporte del editor](https://fastapi.tiangolo.com/img/vscode-completion.png)

* en <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>:

![soporte del editor](https://fastapi.tiangolo.com/img/pycharm-completion.png)

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

* در <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}

But then we get a `dict` in the parameter `commons` of the *path operation function*.

And we know that editors can't provide a lot of support (like completion) for `dict`s, because they can't know their keys and value types.

We can do better...

## What makes a dependency { #what-makes-a-dependency }

Up to now you have seen dependencies declared as functions.

    "image": {
        "url": "http://example.com/baz.jpg",
        "name": "The Foo live"
    }
}
```

Again, doing just that declaration, with **FastAPI** you get:

* Editor support (completion, etc.), even for nested models
* Data conversion
* Data validation
* Automatic documentation

## Special types and validation { #special-types-and-validation }

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

*  <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">🗒</a>:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

👆 🔜 🤚 🛠️ 📟 👆 5️⃣📆 🤔 💪 ⏭. 🖼, `price` 🔑 🔘 🎻 💪 (👈 💪 ✔️ 🐦) 👈 👟 ⚪️➡️ 📨.

* **Moins de bugs** : Réduit d'environ 40 % les erreurs induites par le développeur. *
* **Intuitif** : Excellente compatibilité avec les IDE. <abbr title="également connu sous le nom d'auto-complétion, autocomplétion, IntelliSense">Complétion</abbr> complète. Moins de temps passé à déboguer.
* **Facile** : Conçu pour être facile à utiliser et à apprendre. Moins de temps passé à lire la documentation.