<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:pre="my.namespace.org">
    <complexType name="myType">
        <choice>
            <element name="myAttr" />
            <element name="myAttr3" />
            <element name="myAttr2" />
        </choice>
    </complexType>
</schema>
