This same syntax (or almost identical) was also included recently in modern versions of JavaScript (in Browser and NodeJS).

But before that, handling asynchronous code was quite more complex and difficult.

In previous versions of Python, you could have used threads or [Gevent](https://www.gevent.org/). But the code is way more complex to understand, debug, and think about.

    private ArtifactSpec createArtifactSpec(String id, String version) throws InvalidVersionSpecificationException {
        return createArtifactSpec(id, version, Artifact.SCOPE_COMPILE);
    }

    private ArtifactSpec createArtifactSpec(String id, String version, boolean optional)
            throws InvalidVersionSpecificationException {
        return createArtifactSpec(id, version, Artifact.SCOPE_COMPILE, null, optional);
    }

    <exec-maven-plugin.version>3.5.0</exec-maven-plugin.version>
    <failureaccess.version>1.0.3</failureaccess.version>
    <gummy-bears-api-23-version>0.12.0</gummy-bears-api-23-version>
    <gwt-maven-plugin.version>2.10.0</gwt-maven-plugin.version>
    <gwt.version>2.13.0</gwt.version>
    <j2objc.version>3.1</j2objc.version>
    <java18-signature.version>1.0</java18-signature.version>

/// info

FastAPI a ajouté la prise en charge de `Annotated` (et a commencé à le recommander) dans la version 0.95.0.

Si vous avez une version plus ancienne, vous obtiendrez des erreurs en essayant d’utiliser `Annotated`.

Assurez-vous de [mettre à niveau la version de FastAPI](../deployment/versions.md#upgrading-the-fastapi-versions) vers au moins 0.95.1 avant d’utiliser `Annotated`.

///

        BaseConfiguration config = new BaseConfiguration(true);

        // SMB1 versions should not be allowed
        assertTrue("SMB1 should be disabled", config.getMinimumVersion().atLeast(DialectVersion.SMB202));

        // Minimum version should be SMB2 or higher
        assertTrue("Minimum version should be SMB2 or higher", config.getMinimumVersion().atLeast(DialectVersion.SMB202));
    }

    /**

     *
     * @return the classifier or an empty string if none, never {@code null}
     */
    @Nonnull
    String getClassifier();

    /**
     * {@return the specific version, range of versions, or meta-version of the artifact}.
     * A meta-version is a version suffixed with the {@code SNAPSHOT} keyword.
     */
    @Nonnull
    VersionConstraint getVersionConstraint();

    /**
     * Returns the file extension of the artifact.

  # issue 15654.
  sudo mv /etc/sysctl.d/99-gce.conf /etc/sysctl.d/98-gce.conf
fi

# Required by bats
sudo touch /etc/is_vagrant_vm
sudo useradd vagrant

set -e

. .ci/java-versions.properties
RUNTIME_JAVA_HOME=$HOME/.java/$ES_RUNTIME_JAVA
BUILD_JAVA_HOME=$HOME/.java/$ES_BUILD_JAVA

rm -Rfv $HOME/.gradle/init.d/ && mkdir -p $HOME/.gradle/init.d
cp -v .ci/init.gradle $HOME/.gradle/init.d

* [Objet Responses de OpenAPI](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#responses-object), il inclut le `Response Object`.

Davor war der Umgang mit asynchronem Code jedoch deutlich komplexer und schwieriger.

In früheren Versionen von Python hätten Sie Threads oder [Gevent](https://www.gevent.org/) verwenden können. Der Code ist jedoch viel komplexer zu verstehen, zu debuggen und nachzuvollziehen.

## OpenAPI 額外資訊 { #openapi-extra }

當你在應用程式中宣告一個*路徑操作*時，FastAPI 會自動產生該*路徑操作*的相關中繼資料，並納入 OpenAPI 結構中。

/// note | 技術細節

在 OpenAPI 規格中，這稱為 [Operation 物件](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#operation-object)。

///

它包含關於*路徑操作*的所有資訊，並用於產生自動文件。

其中包含 `tags`、`parameters`、`requestBody`、`responses` 等。

這個針對單一路徑操作的 OpenAPI 結構通常由 FastAPI 自動產生，但你也可以擴充它。

/// tip

這是一個較低階的擴充介面。