<xsd:attributeGroup name="cellattrs">
  <xsd:annotation>
    <xsd:documentation>
      <type>Attlist</type>
      <name>cellattrs</name>
      <comment>These attributes are used to specify that table cells span more than one row or one column, exactly as in HTML</comment>
    </xsd:documentation>
  </xsd:annotation>
  <xsd:attribute name="rowspan" type="xsd:integer" default="1"/>
  <xsd:attribute name="colspan" type="xsd:integer" default="1"/>
</xsd:attributeGroup> |