<xsd:attributeGroup id="attGp.isSI" name="isSI">
<xsd:attribute name="isSI" id="att.isSI" type="xsd:boolean">
<xsd:annotation>
<xsd:documentation>
<h:div class="summary" xmlns:h="http://www.w3.org/1999/xhtml">indicates whether a unit is an SI or derived SI unit.</h:div>
<h:div class="description" xmlns:h="http://www.w3.org/1999/xhtml">required on SI unit elements with value 'true'.
Optional on other units with attribute 'false'. A unitList should contain either
SI units or non-SI units but not both.</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:attribute>
</xsd:attributeGroup>
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