<dt:wrappedwildcard xmlns:dt="http://openuri.org/test/dyntest">
  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://openuri.org/test/quant">
    <xs:element name="quantity" type="xs:int"/>
  </xs:schema>
</dt:wrappedwildcard>