field>
      <field name="parameterTypes" optional="true">
        <list>
          <ref>String</ref>
        </list>
        <p>
          The types of the parameters of the function or method being suggested.
          This field is omitted if the parameterNames field is omitted.
        </p>
      </field>
      <field name="requiredParameterCount" optional="true">
        <ref>int</ref>
        <p>
          The number of required parameters for the function or method being
          suggested. This fie