ers exclusively by their position, then it MAY
        use a JSON Array for the <code>params</code> member of the <a href="#PostProcedureCall">Procedure Call</a> object as a terser
        method:</p>
    <div class="exampleOuter">
      <div class="exampleHeader">
            Procedure Call With Positional Parameters Only (Using JSON Array)</div>
      <div class="exampleInner">
        <pre>{
    "version" : "1.1",
    "method"  : "sum",
    "params"  : [ 12, 34, 56 ]
}</pre>
      </div>
    </div>
    <