range.
        </p>
      </field>
      <field name="endColumn" optional="true">
        <ref>int</ref>
        <p>
          The one-based index of the column containing the character immediately
          following the range.
        </p>
      </field>
    </object>
  </type>
  <type name="NavigationRegion">
    <p>
      A description of a region from which the user can navigate to the
      declaration of an element.
    </p>
    <object>
      <field name="offset">
        <ref>int</ref>
        <p>
