<xs:schema xmlns:xs=“www.w3.org/2001/XMLSchema

elementFormDefault="unqualified">

<xs:element name="foo">
        <xs:complexType>
            <xs:sequence>
                        <xs:element name="bar" type="typeA"/>
                </xs:sequence>
        </xs:complexType>
</xs:element>

<xs:attributeGroup name="attrGrA">
        <xs:anyAttribute namespace="##targetNamespace"/>
</xs:attributeGroup>

<xs:complexType name="typeA">                           
        <xs:attributeGroup ref="attrGrA" />                                     
        <xs:anyAttribute namespace="##targetNamespace" processContents="lax"/>  
</xs:complexType>

</xs:schema>