<type>Attlist</type><name>optvalue</name><comment>The attribute value is used to specify a value for metadata elements. In elements using this attribute definition the value attribute is optional</comment>
<xsd:attributeGroup name="optvalue"><xsd:annotation><xsd:documentation><type>Attlist</type><name>optvalue</name><comment>The attribute value is used to specify a value for metadata elements. In elements using this attribute definition the value attribute is optional</comment></xsd:documentation></xsd:annotation><xsd:attribute name="value" type="xsd:string"/></xsd:attributeGroup>