| <?xml version="1.0"?> | |
| <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> | |
| <xsd:attribute name="att1" type="xsd:string"/> | |
| <xsd:attribute name="att2" type="xsd:string"/> | |
| <xsd:attributeGroup name="abc" id=":a"> | |
| <xsd:attribute ref="att1"/> | |
| </xsd:attributeGroup> | |
| </xsd:schema> |