<xsd:element name="FileReferences" minOccurs="0" maxOccurs="unbounded"> <xsd:complexType> <xsd:simpleContent> <xsd:extension base="xsd:string"> <xsd:attribute name="type" type="DocumentationTypes" use="optional" /> <xsd:attribute name="mediaType" type="MediaTypes" use="optional" /> </xsd:extension> </xsd:simpleContent> </xsd:complexType> </xsd:element>