Em `typing`, importe `List` (com um `L` maiúsculo):

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial006.py!}
```

Declare a variável com a mesma sintaxe de dois pontos (`:`).

Como o tipo, coloque a `List`.

Como a lista é um tipo que contém alguns tipos internos, você os coloca entre colchetes:

```Python hl_lines="4"
{!../../../docs_src/python_types/tutorial006.py!}
```

!!! tip "Dica"

    * You can imagine that `main:app` is equivalent to a Python `import` statement like:

        ```Python
        from main import app
        ```

    * So, the colon in `main:app` would be equivalent to the Python `import` part in `from main import app`.

* `--workers`: The number of worker processes to use, each will run a Uvicorn worker, in this case, 4 workers.

            self.response_field = create_response_field(
                name=response_name,
                type_=self.response_model,
                mode="serialization",
            )
            # Create a clone of the field, so that a Pydantic submodel is not returned
            # as is just because it's an instance of a subclass of a more limited class
            # e.g. UserInDB (containing hashed_password) could be a subclass of User

## Recapitulando

* Importe `FastAPI`.
* Crie uma instância do `app`.
* Coloque o **decorador que define a operação** (como `@app.get("/")`).
* Escreva uma **função para a operação da rota** (como `def root(): ...`) abaixo.

{!../../../docs_src/python_types/tutorial002.py!}
```

That is not the same as declaring default values like would be with:

```Python
    first_name="john", last_name="doe"
```

It's a different thing.

We are using colons (`:`), not equals (`=`).

And adding type hints normally doesn't change what happens from what would happen without them.

But now, imagine you are again in the middle of creating that function, but with type hints.

        return data
    ```

    Note that for OAuth2 the scope `items:read` is a single scope in an opaque string.
    You could have custom internal logic to separate it by colon caracters (`:`) or
    similar, and get the two parts `items` and `read`. Many applications do that to
    group and organize permissions, you could do it as well in your application, just

* Add note about using Body parameters without Pydantic. PR [#900](https://github.com/tiangolo/fastapi/pull/900) by [@pawamoy](https://github.com/pawamoy).
* Fix Pydantic field clone logic. PR [#899](https://github.com/tiangolo/fastapi/pull/899) by [@deuce2367](https://github.com/deuce2367).