keystone/docs/guide/src/docbkx/samples/globalgroups.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<groups xmlns="http://docs.rackspacecloud.com/idm/api/v1.0">
    <group
        name="Admin" 
        description="A description..."/>
    <group
        name="Technical" 
        description="Another description..."/>
</groups>