С помощью `Form` вы можете объявить те же настройки, что и с `Body` (и `Query`, `Path`, `Cookie`), включая валидацию, примеры, псевдоним (например, `user-name` вместо `username`) и т.д.

/// info | Дополнительная информация

`Form` — это класс, который наследуется непосредственно от `Body`.

///

/// tip | Подсказка

## Llama a `uvicorn` { #call-uvicorn }

En tu aplicación de FastAPI, importa y ejecuta `uvicorn` directamente:

{* ../../docs_src/debugging/tutorial001_py39.py hl[1,15] *}

### Acerca de `__name__ == "__main__"` { #about-name-main }

El objetivo principal de `__name__ == "__main__"` es tener algo de código que se ejecute cuando tu archivo es llamado con:

<div class="termy">

```console
$ python myapp.py
```

</div>

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        "tutorial001_py39",
        "tutorial001_an_py39",
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.request_files.{request.param}")

    client = TestClient(mod.app)
    return client


def test_post_form_no_body(client: TestClient):

)

var errDuplicateTagKey = Errorf("Duplicate Tag Keys are not allowed")

// And - a tag to combine a prefix and multiple tags for lifecycle configuration rule.
type And struct {
	XMLName               xml.Name `xml:"And"`
	ObjectSizeGreaterThan int64    `xml:"ObjectSizeGreaterThan,omitempty"`
	ObjectSizeLessThan    int64    `xml:"ObjectSizeLessThan,omitempty"`
	Prefix                Prefix   `xml:"Prefix,omitempty"`

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="dict"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="dict"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="system"/>
        <jsp:param name="menuType" value="dict"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="crawl"/>
        <jsp:param name="menuType" value="fileAuthentication"/>
    </jsp:include>
    <main class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

   * Host header).
   */
  @Test
  fun domainFronting() {
    val heldCertificate =
      HeldCertificate
        .Builder()
        .commonName("server name")
        .addSubjectAlternativeName("url-host.com")
        .build()
    val handshakeCertificates =
      HandshakeCertificates
        .Builder()
        .heldCertificate(heldCertificate)

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: list = []


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, "item": item}