def compatibilityBaselineVersion = gradleModule.identity.releasedVersions.get().mostRecentRelease.version

def ARTIFACT_TYPE = Attribute.of('artifactType', String)
def RUNTIME_ATTRIBUTE = objects.named(Usage, Usage.JAVA_RUNTIME)
def DOCUMENTATION_ATTRIBUTE = objects.named(Category, Category.DOCUMENTATION)
def SOURCES_ATTRIBUTE = objects.named(DocsType, "gradle-source-folders")

configurations {
    def baseline = baseline {}

{* ../../docs_src/dataclasses_/tutorial001.py hl[1,7:12,19:20] *}

这还是借助于 **Pydantic** 及其<a href="https://pydantic-docs.helpmanual.io/usage/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">内置的 `dataclasses`</a>。

因此，即便上述代码没有显式使用 Pydantic，FastAPI 仍会使用 Pydantic 把标准数据类转换为 Pydantic 数据类（`dataclasses`）。

并且，它仍然支持以下功能：

Zusätzliche optionale Pydantic-Abhängigkeiten:

* <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" target="_blank"><code>pydantic-settings</code></a> – für die Verwaltung von Einstellungen.
* <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> – für zusätzliche Typen zur Verwendung mit Pydantic.

* When you install `"fastapi[all]"` it now also includes:
    * <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" target="_blank"><code>pydantic-settings</code></a> - for settings management.
    * <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - for extra types to be used with Pydantic.