style V2 fill:#f9fff3
    style V1 fill:#fff6f0
    style V1Field fill:#fff6f0
    style V2Field fill:#f9fff3
```

En algunos casos, incluso es posible tener modelos de Pydantic v1 y v2 en la misma path operation de tu app de FastAPI:

{* ../../docs_src/pydantic_v1_in_v2/tutorial003_an_py310.py hl[2:3,6,12,21:22] *}

	// because we will unzip some object data from a sample archive.
	const numDisks = 4
	path := t.TempDir()

	var fsDirs []string
	for i := 1; i <= numDisks; i++ {
		fsDirs = append(fsDirs, filepath.Join(path, fmt.Sprintf("disk%d", i)))
	}

	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, fsDirs...))
	if err != nil {

		NodeName:  globalLocalNodeName,
		FuncName:  fmt.Sprintf("decommission.%s (pool-id=%d)", d.String(), poolIdx),
		Duration:  duration,
		Path:      path,
		Error:     errStr,
		Bytes:     sz,
	}
}

func (m *decomMetrics) log(d decomMetric, poolIdx int, paths ...string) func(z int64, err error) {
	startTime := time.Now()
	return func(sz int64, err error) {
		duration := time.Since(startTime)

        shareInfo502.type = 1;
        shareInfo502.remark = "Test Remark";
        shareInfo502.permissions = 2;
        shareInfo502.max_uses = 10;
        shareInfo502.current_uses = 5;
        shareInfo502.path = "C:\\test";
        shareInfo502.password = "password";
        shareInfo502.sd_size = 2;
        shareInfo502.security_descriptor = new byte[] { 1, 2 };

        // Set up mocks for the security descriptor encoding

    <name>fileExists</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>boolean fileExists(java.lang.String)</function-signature>
    <example>
      ${fe:fileExists(path)}
    </example>
  </function>

  <function>
    <description>Calculates URL.</description>
    <name>url</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>

Mais vous pouvez toujours changer et mettre à jour toutes les configurations avec des variables d'environnement ou des fichiers de configuration.

/// tip | Astuce

Pour voir toutes les configurations et options, rendez-vous sur la page de l'image Docker : <a href="https://github.com/tiangolo/uvicorn-gunicorn-fastapi-docker" class="external-link" target="_blank">tiangolo/uvicorn-gunicorn-fastapi</a>.

///

## Créer un `Dockerfile`

{* ../../docs_src/request_files/tutorial001_an_py39.py hl[9] *}

/// info | Informação

`File` é uma classe que herda diretamente de `Form`.

Mas lembre-se que quando você importa `Query`, `Path`, `File` e outros de `fastapi`, eles são, na verdade, funções que retornam classes especiais.

///

/// tip | Dica

func ScanRunes(data []byte, atEOF bool) (advance int, token []byte, err error) {
	if atEOF && len(data) == 0 {
		return 0, nil, nil
	}

	// Fast path 1: ASCII.
	if data[0] < utf8.RuneSelf {
		return 1, data[0:1], nil
	}

	// Fast path 2: Correct UTF-8 decode without error.
	_, width := utf8.DecodeRune(data)
	if width > 1 {
		// It's a valid encoding. Width cannot be one for a correctly encoded

	var errStr string
	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceRebalance,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  fmt.Sprintf("rebalance.%s (pool-id=%d)", r.String(), poolIdx),
		Duration:  duration,
		Path:      path,
		Error:     errStr,

///

そして、さらに多くのパラメータを`Query`に渡すことができます。この場合、文字列に適用される、`max_length`パラメータを指定します。

```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

これにより、データを検証し、データが有効でない場合は明確なエラーを表示し、OpenAPIスキーマの　*path operation* にパラメータを記載します。

## バリデーションをさらに追加する

パラメータ`min_length`も追加することができます:

{* ../../docs_src/query_params_str_validations/tutorial003.py hl[10] *}

## 正規表現の追加