FastAPI está construido sobre **Pydantic**, y te he estado mostrando cómo usar modelos de Pydantic para declarar requests y responses.

Pero FastAPI también soporta el uso de [`dataclasses`](https://docs.python.org/3/library/dataclasses.html) de la misma manera:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

Vous pouvez écrire [Markdown](https://en.wikipedia.org/wiki/Markdown) dans la docstring, il sera interprété et affiché correctement (en tenant compte de l'indentation de la docstring).

{* ../../docs_src/path_operation_configuration/tutorial004_py310.py hl[17:25] *}

O `TestClient` é baseado no [HTTPX](https://www.python-httpx.org), e felizmente nós podemos utilizá-lo diretamente para testar a API.

## Exemplo { #example }

FastAPI é construído em cima do **Pydantic**, e eu tenho mostrado como usar modelos Pydantic para declarar requisições e respostas.

Mas o FastAPI também suporta o uso de [`dataclasses`](https://docs.python.org/3/library/dataclasses.html) da mesma forma:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

Agora, vamos ver como você pode usar isso para retornar uma resposta personalizada.

Vamos dizer que você quer retornar uma resposta [XML](https://en.wikipedia.org/wiki/XML).

Você pode colocar o seu conteúdo XML em uma string, colocar em uma `Response`, e retorná-lo:

{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"bytes"
	"compress/gzip"
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"math/rand"
	"net/url"
	"time"

	"github.com/minio/madmin-go/v3"
)

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"encoding/base64"
	"runtime"
	"strings"

	"github.com/minio/minio-go/v7/pkg/s3utils"
)

// Checks on CopyObject arguments, bucket and object.

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package sse

import (
	"bytes"
	"encoding/xml"
	"errors"
	"testing"
)

// TestParseBucketSSEConfig performs basic sanity tests on ParseBucketSSEConfig

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package event

import (
	"fmt"
	"maps"
	"net/http"
	"strings"
	"sync"
)

// Target - lambda target interface
type Target interface {
	ID() TargetID
	IsActive() (bool, error)

#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,