r method or the type of the
          field being suggested. This field is omitted if the suggested element
          is not a getter, function or method.
        </p>
      </field>
      <field name="parameterNames" optional="true">
        <list>
          <ref>String</ref>
        </list>
        <p>
          The names of the parameters of the function or method being suggested.
          This field is omitted if the suggested element is not a setter,
          function or method.
        </p>
      </