<xs:attributeGroup name="i18nAttributes">
    <xs:annotation>
        <xs:documentation>A group of attributes for language and script related information</xs:documentation>
    </xs:annotation>
    <xs:attribute ref="xml:lang" use="optional">
        <xs:annotation>
            <xs:documentation>Specifies the language of this property and potentially all descendant properties. xml:lang values of descendant properties override this value. Values are determined by Internet BCP 47.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="dir" use="optional">
        <xs:annotation>
            <xs:documentation>The directionality of textual content (enumeration: ltr, rtl)</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
            <xs:restriction base="xs:NMTOKEN">
                <xs:enumeration value="ltr" />
                <xs:enumeration value="rtl" />
            </xs:restriction>
        </xs:simpleType>
    </xs:attribute>
</xs:attributeGroup>