Certifique-se de [Atualizar a versão do FastAPI](../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} para pelo menos 0.95.1 antes de usar `Annotated`.

///

## Declare metadados { #declare-metadata }

Você pode declarar todos os mesmos parâmetros que em `Query`.

Por exemplo, para declarar um valor de metadado `title` para o parâmetro de path `item_id` você pode digitar:

[Normalization] - NormalizerChain
    ↓
[Reading Conversion] - ReadingConverterChain
    ↓
[Analysis] - SuggestAnalyzer
```

Note: Suggester has TWO ReadingConverter instances:
- `readingConverter` - For query/metadata fields
- `contentsReadingConverter` - For content/document fields

---

## Key Components

### Suggester (Main Entry Point)
Location: `src/main/java/org/codelibs/fess/suggest/Suggester.java`

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			Queries("list-type", "2", "metadata", "true")
		// ListObjectsV2
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListObjectsV2Handler)).
			Queries("list-type", "2")
		// ListObjectVersions
		router.Methods(http.MethodGet).
			HandlerFunc(s3APIMiddleware(api.ListObjectVersionsMHandler)).
			Queries("versions", "", "metadata", "true")
		// ListObjectVersions

			ParentPolicyMapping: policyName,
		},
		UpdatedAt: updatedAt,
	}))

	response := new(AssumeRoleWithCertificateResponse)
	response.Result.Credentials = tmpCredentials
	response.Metadata.RequestID = w.Header().Get(xhttp.AmzRequestID)
	writeSuccessResponseXML(w, encodeResponse(response))
}

// AssumeRoleWithCustomToken implements user authentication with custom tokens.

        rule.setRuleId("stateRule");
        rule.setResponseProcessor(new TestResponseProcessor("stateProcessor"));

        // Empty ResponseData
        ResponseData emptyData = new ResponseData();
        assertTrue(rule.match(emptyData));

        // ResponseData with only URL
        ResponseData urlOnlyData = new ResponseData();
        urlOnlyData.setUrl("http://example.com");

      - tutorial/security/oauth2-jwt.md
    - tutorial/middleware.md
    - tutorial/cors.md
    - tutorial/sql-databases.md
    - tutorial/bigger-applications.md
    - tutorial/background-tasks.md
    - tutorial/metadata.md
    - tutorial/static-files.md
    - tutorial/testing.md
    - tutorial/debugging.md
  - Advanced User Guide:
    - advanced/index.md
    - advanced/path-operation-advanced-configuration.md

Помните, я уже говорил, что `Annotated` можно использовать для добавления метаданных к параметрам в разделе [Введение в типы Python](../python-types.md#type-hints-with-metadata-annotations){.internal-link target=_blank}?

Пришло время использовать его с FastAPI. 🚀

У нас была такая аннотация типа:

//// tab | Python 3.10+

```Python
q: str | None = None
```

////

///

## Declarar metadatos { #declare-metadata }

Puedes declarar todos los mismos parámetros que para `Query`.

Por ejemplo, para declarar un valor de metadato `title` para el parámetro de path `item_id` puedes escribir:

{* ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py hl[10] *}

/// note | Nota

///

## Metadaten deklarieren { #declare-metadata }

Sie können dieselben Parameter wie für `Query` deklarieren.

Um zum Beispiel einen `title`-Metadaten-Wert für den Pfad-Parameter `item_id` zu deklarieren, können Sie schreiben: