# Modelos de Formulários

Você pode utilizar **Modelos Pydantic** para declarar **campos de formulários** no FastAPI.

/// info | Informação

Para utilizar formulários, instale primeiramente o <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo, e então instalar. Por exemplo:

Для установки заголовков и cookies `Response` используется часто, поэтому **FastAPI** также предоставляет его через `fastapi.responses`.
///

   */
  public final double sampleCovariance() {
    checkState(count() > 1);
    return sumOfProductsOfDeltas / (count() - 1);
  }

  /**
   * Returns the <a href="http://mathworld.wolfram.com/CorrelationCoefficient.html">Pearson's or
   * product-moment correlation coefficient</a> of the values. The count must greater than one, and

 * concurrently and one of the threads modifies the table, it must be synchronized externally.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#table">{@code Table}</a>.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 * @since 7.0
 */
@GwtCompatible

## Create `main.py` { #create-main-py }

Copy the example in a file `main.py`:

{* ../../docs_src/security/tutorial001_an_py39.py *}

## Run it { #run-it }

/// info

The <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a> package is automatically installed with **FastAPI** when you run the `pip install "fastapi[standard]"` command.

```

/// info | 정보

FastAPI는 이를 위해 Pydantic 모델의 `.dict()`의 <a href="https://docs.pydantic.dev/latest/concepts/serialization/#modeldict" class="external-link" target="_blank"> `exclude_unset` 매개변수</a>를 사용합니다.

///

/// info | 정보

아래 또한 사용할 수 있습니다:

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

Und da die `Response` häufig zum Setzen von Headern und Cookies verwendet wird, stellt **FastAPI** diese auch unter `fastapi.Response` bereit.

///

E como o `Response` pode ser usado frequentemente para definir cabeçalhos e cookies, o **FastAPI** também o fornece em `fastapi.Response`.

///

Отже, рядок:

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

не буде виконано.

/// info | Інформація

Більш детальну інформацію можна знайти в <a href="https://docs.python.org/3/library/__main__.html" class="external-link" target="_blank">офіційній документації Python</a>.

///

## Запуск коду з вашим дебагером

📛 😑 📏 &amp; 📔 💗 ⏸, 👆 💪 📣 *➡ 🛠️* 📛 🔢 <abbr title="a multi-line string as the first expression inside a function (not assigned to any variable) used for documentation"> #️⃣ </abbr> &amp; **FastAPI** 🔜 ✍ ⚫️ ⚪️➡️ 📤.

👆 💪 ✍ <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">✍</a> #️⃣ , ⚫️ 🔜 🔬 &amp; 🖥 ☑ (✊ 🔘 🏧 #️⃣ 📐).

{* ../../docs_src/path_operation_configuration/tutorial004.py hl[19:27] *}

⚫️ 🔜 ⚙️ 🎓 🩺: