<xsd:attributeGroup name="upTo">
  <xsd:annotation>
    <xsd:documentation>
      <type>Attlist</type>
      <name>upTo</name>
      <comment>The attribute upTo is used in range-based elements to specify the eId of the ending element of the range.</comment>
    </xsd:documentation>
  </xsd:annotation>
  <xsd:attribute name="upTo" type="eIdRef" use="required"/>
</xsd:attributeGroup> |