type PostPolicyForm struct {
	Expiration time.Time // Expiration date and time of the POST policy.
	Conditions struct {  // Conditional policy structure.
		Policies []struct {
			Operator string
			Key      string
			Value    string
		}
		ContentLengthRange contentLengthRange
	}
}

// implemented to ensure that duplicate keys in JSON

type formatErasureVersionDetect struct {
	Erasure struct {
		Version string `json:"version"`
	} `json:"xl"`
}

// Represents the V1 backend disk structure version
// under `.minio.sys` and actual data namespace.
// formatErasureV1 - structure holds format config version '1'.
type formatErasureV1 struct {
	formatMetaV1
	Erasure struct {
		Version string `json:"version"` // Version of 'xl' format.

De esta manera, su esquema aparecerá en la interfaz de usuario de la documentación de la API:

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses en Estructuras de Datos Anidadas { #dataclasses-in-nested-data-structures }

También puedes combinar `dataclasses` con otras anotaciones de tipos para crear estructuras de datos anidadas.

Dessa forma, seu esquema aparecerá na interface de documentação da API:

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses em Estruturas de Dados Aninhadas { #dataclasses-in-nested-data-structures }

Você também pode combinar `dataclasses` com outras anotações de tipo para criar estruturas de dados aninhadas.

        assertEquals(0x0311, response.getDialectRevision());
        assertNotNull(response.getServerGuid());
    }

    @ParameterizedTest
    @DisplayName("Should throw exception for invalid structure size")
    @ValueSource(ints = { 0, 1, 64, 66, 128 })
    void testReadBytesWireFormatInvalidStructureSize(int structureSize) {
        // Given
        byte[] buffer = new byte[256];

{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[11,16] *}

## Définir des dépendances pour un groupe de chemins d'accès { #dependencies-for-a-group-of-path-operations }

/**
 * Represents a hierarchical trace of nested requests within a session, enabling correlation between
 * session events and their originating operations in the application code. The trace structure
 * supports the following key features:
 *
 * <ul>
 *   <li>Maintains parent-child relationships between requests to track operation nesting</li>

///

/// tip | Astuce

Remarquez comment chaque attribut de modèle avec un type, une valeur par défaut et `Field` a la même structure qu'un paramètre de fonction de chemin d'accès, avec `Field` au lieu de `Path`, `Query` et `Body`.

///

## Ajouter des informations supplémentaires { #add-extra-information }

            // Create a buffer and write
            byte[] buffer = new byte[256];
            int bytesWritten = request.writeBytesWireFormat(buffer, 64);

            // Verify structure size (should be 41)
            assertEquals(41, SMBUtil.readInt2(buffer, 64));

            // Verify info type and file info class
            assertEquals((byte) 0x01, buffer[66]);

///

/// tip

Notice how each model's attribute with a type, default value and `Field` has the same structure as a *path operation function's* parameter, with `Field` instead of `Path`, `Query` and `Body`.

///

## Add extra information { #add-extra-information }