<?xml version="1.0" encoding="us-ascii"?> <component> <abstracttype name='thing'/> <sectiontype name='thing-a' implements='thing'> <key name='thing-a-key' default='thing-a-default'/> </sectiontype> <sectiontype name='thing-b' implements='thing'> <key name='thing-b-key' default='thing-b-default'/> </sectiontype> </component>