<xs:attribute name="language" default="VBScript" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:annotation>
    <xs:documentation>The script engine that interprets the expression.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:string">
      <xs:enumeration value="VBScript" />
      <xs:enumeration value="JScript" />
      <xs:enumeration value="Python" />
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>