<img src="/img/python-types/image06.png">

Notice that this means "`one_person` is an **instance** of the class `Person`".

It doesn't mean "`one_person` is the **class** called `Person`".

## Pydantic models { #pydantic-models }

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> is a Python library to perform data validation.

You declare the "shape" of the data as classes with attributes.

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values

Обратите внимание, что это означает: «`one_person` — это **экземпляр** класса `Person`».

Это не означает: «`one_person` — это **класс** с именем `Person`».

## Pydantic-модели { #pydantic-models }

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> — это библиотека Python для валидации данных.

Вы объявляете «форму» данных как классы с атрибутами.

from typing import Annotated, Any, Optional, Union, cast

from annotated_doc import Doc
from fastapi.exceptions import HTTPException
from fastapi.openapi.models import OAuth2 as OAuth2Model
from fastapi.openapi.models import OAuthFlows as OAuthFlowsModel
from fastapi.param_functions import Form
from fastapi.security.base import SecurityBase
from fastapi.security.utils import get_authorization_scheme_param
from starlette.requests import Request

 */
package org.apache.maven.model.plugin;

import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.model.Build;
import org.apache.maven.model.InputLocation;
import org.apache.maven.model.InputSource;
import org.apache.maven.model.Model;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginManagement;
import org.apache.maven.model.ReportPlugin;

### Security and authentication { #security-and-authentication }

Security and authentication integrated. Without any compromise with databases or data models.

All the security schemes defined in OpenAPI, including:

* HTTP Basic.
* **OAuth2** (also with **JWT tokens**). Check the tutorial on [OAuth2 with JWT](tutorial/security/oauth2-jwt.md){.internal-link target=_blank}.

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values

{* ../../docs_src/response_headers/tutorial002_py39.py hl[1, 7:8] *}

Y luego puedes devolver cualquier objeto que necesites, como harías normalmente (un `dict`, un modelo de base de datos, etc).

Y si declaraste un `response_model`, aún se usará para filtrar y convertir el objeto que devolviste.

/// warning | Atenção

Quando você retorna um `Response` diretamente, como no exemplo acima, ele será retornado diretamente.

Ele não será serializado com um modelo, etc.

Garanta que ele tenha toda informação que você deseja, e que os valores sejam um JSON válido (caso você esteja usando `JSONResponse`).

///

/// note | Detalhes Técnicos

# Código de Estado del Response { #response-status-code }

De la misma manera que puedes especificar un modelo de response, también puedes declarar el código de estado HTTP usado para el response con el parámetro `status_code` en cualquiera de las *path operations*:

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* etc.

{* ../../docs_src/response_status_code/tutorial001_py39.py hl[6] *}

/// note | Nota