<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
targetNamespace="urn:polyxml:billing" xmlns:b="urn:polyxml:billing"
xmlns:c="urn:polyxml:common" elementFormDefault="qualified">
<xs:import namespace="urn:polyxml:common" schemaLocation="common.xsd"/>
<xs:complexType name="BillingMessage">
<xs:sequence><xs:element name="customer" type="c:Person"/></xs:sequence>
</xs:complexType>
<xs:element name="billing" type="b:BillingMessage"/>
</xs:schema>