```JSON
{"item_id":"foo"}
```

## Pfad-Parameter mit Typen { #path-parameters-with-types }

Sie können den Typ eines Pfad-Parameters in der Argumentliste der Funktion deklarieren, mit Standard-Python-Typannotationen:

{* ../../docs_src/path_params/tutorial002_py310.py hl[7] *}

///

## Use `Annotated` no tipo do parâmetro `q` { #use-annotated-in-the-type-for-the-q-parameter }

Lembra que eu disse antes que `Annotated` pode ser usado para adicionar metadados aos seus parâmetros na [Introdução aos tipos do Python](../python-types.md#type-hints-with-metadata-annotations)?

Agora é a hora de usá-lo com FastAPI. 🚀

Tínhamos esta anotação de tipo:

```Python

}

// RoundTripper provides an interface for type roundtrip serialization.
type RoundTripper interface {
	msgp.Unmarshaler
	msgp.Marshaler
	msgp.Sizer

	comparable
}

// SingleHandler is a type safe handler for single roundtrip requests.
type SingleHandler[Req, Resp RoundTripper] struct {
	id            HandlerID
	sharedResp    bool

import org.lastaflute.web.validation.RequiredValidator;
import org.lastaflute.web.validation.theme.typed.DoubleTypeValidator;
import org.lastaflute.web.validation.theme.typed.FloatTypeValidator;
import org.lastaflute.web.validation.theme.typed.IntegerTypeValidator;
import org.lastaflute.web.validation.theme.typed.LongTypeValidator;
import org.opensearch.search.sort.SortBuilder;
import org.opensearch.search.sort.SortBuilders;

  dependencies:
    "@types/node" "*"

"@types/eslint-scope@^3.7.3":
  version "3.7.4"
  resolved "https://registry.yarnpkg.com/@types/eslint-scope/-/eslint-scope-3.7.4.tgz#37fc1223f0786c39627068a12e94d6e6fc61de16"
  integrity sha512-9K4zoImiZc3HlIp6AVUDE4CWYx22a+lhSZMYNpbjW04+YF0KWj4pJXnEMjdnFTiQibFFmElcsasJXDbdI/EPhA==
  dependencies:
    "@types/eslint" "*"
    "@types/estree" "*"

"@types/eslint@*":

        <state type="buildFinished" enabled="true" />
        <state type="buildSuccessful" enabled="true" />
        <state type="buildFailed" enabled="true" />
        <state type="buildFixed" enabled="false" />
        <state type="buildBroken" enabled="false" />
        <state type="responsibilityChanged" enabled="false" />
        <state type="buildPinned" enabled="false" />

                    && (actual == Long.TYPE || actual == Integer.TYPE || actual == Short.TYPE || actual == Byte.TYPE)) {
                return true;
            }
            if (formal == Double.TYPE
                    && (actual == Float.TYPE
                            || actual == Long.TYPE
                            || actual == Integer.TYPE
                            || actual == Short.TYPE

    return values, errors


def is_union_of_base_models(field_type: Any) -> bool:
    """Check if field type is a Union where all members are BaseModel subclasses."""
    from fastapi.types import UnionType

    origin = get_origin(field_type)

    # Check if it's a Union type (covers both typing.Union and types.UnionType in Python 3.10+)
    if origin is not Union and origin is not UnionType:
        return False

    @Override
    public Collection<Type> provides() {
        return (Collection) types();
    }

    public Collection<DefaultType> types() {
        return Arrays.asList(
                // Maven types
                new DefaultType(Type.POM, Language.NONE, "pom", null, false),
                new DefaultType(Type.BOM, Language.NONE, "pom", null, false),

///

## Utiliser `Annotated` dans le type pour le paramètre `q` { #use-annotated-in-the-type-for-the-q-parameter }

Vous vous souvenez que je vous ai dit plus tôt que `Annotated` peut être utilisé pour ajouter des métadonnées à vos paramètres dans l’[Introduction aux types Python](../python-types.md#type-hints-with-metadata-annotations) ?

C’est le moment de l’utiliser avec FastAPI. 🚀