ass="desc" /></colgroup>
    <tr>
      <th>...</th>
      <td><p>named parameters</p></td>
    </tr>
    </table>

    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>a JSON character string</p>

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='kw'>if</span> (<span class='fl'>FALSE</span>) {
<span class='fu'>prepare_payload</span>() <span class='co'># return only the