<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://xsdtesting" xmlns:x="http://xsdtesting">
	<xsd:attribute name="ga1" type="xsd:integer"/>
	<xsd:attribute name="ga2" type="xsd:integer"/>
	<xsd:attributeGroup name="attG">
		<xsd:attribute name="aga1"/>
		<xsd:attribute name="aga2"/>
	</xsd:attributeGroup>
	<xsd:complexType name="attRef">
		<xsd:attribute name="ca1" use="prohibited" default="abc"/>
		<xsd:attribute name="ca2"/>
		<xsd:attributeGroup ref="x:attG"/>
		<xsd:attribute ref="x:ga2"/>
	</xsd:complexType>
	<xsd:element name="doc">
		<xsd:complexType>
			<xsd:choice>
				<xsd:element name="elem" type="x:attRef"/>
			</xsd:choice>
			<xsd:attribute ref="x:ga1"/>
		</xsd:complexType>
	</xsd:element>
</xsd:schema>