</chapter>
        ''')

        ClassDoc classDoc = classDoc('org.gradle.Class', id: 'classId', content: sourceContent, comment: 'class comment')
        _ * classDoc.classProperties >> []
        _ * classDoc.classMethods >> []
        _ * classDoc.classBlocks >> []
        _ * classDoc.classExtensions >> []
        _ * classDoc.subClasses >> []

        when:
        def result = parse('<root/>')
        withCategories {

            def linkMetaData = linkRepository.get(classDoc.name)
            linkMetaData.style = LinkMetaData.Style.Dsldoc
            classDoc.classMethods.each { methodDoc ->
                linkMetaData.addMethod(methodDoc.metaData, LinkMetaData.Style.Dsldoc)
            }
            classDoc.classBlocks.each { blockDoc ->

    from pydantic import EmailStr
except ImportError:  # pragma: no cover

    class EmailStr(str):  # type: ignore
        @classmethod
        def __get_validators__(cls) -> Iterable[Callable[..., Any]]:
            yield cls.validate

        @classmethod
        def validate(cls, v: Any) -> str:
            logger.warning(
                "email-validator not installed, email fields will be treated as str.\n"