org/Protocols/rfc2616/rfc2616-sec4.html#sec4.4">Section 4.4, “Message Length”</a>,
            of the HTTP specification.</li>
      <li>The <code><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">Accept</a></code> MUST be specified and SHOULD read <code>application/json</code>.</li>
    </ul>
    <h3 id="PostProcedureCall">6.2. Call Encoding Using HTTP POST</h3>
    <p>
        When using HTTP POST, the call is expressed in the HTTP request body as a JSON Object
        that carr