Make sure you [Upgrade the FastAPI version](../../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} to at least 0.95.1 before using `Annotated`.

### Import `Depends`

=== "Python 3.10+"

    ```Python hl_lines="3"
    {!> ../../../docs_src/dependencies/tutorial001_an_py310.py!}
    ```

=== "Python 3.9+"

INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>Sobre o comando <code>uvicorn main:app --reload</code>...</summary>

O comando `uvicorn main:app` se refere a:

* `main`: o arquivo `main.py` (o "módulo" Python).
* `app`: o objeto criado dentro de `main.py` com a linha `app = FastAPI()`.