ss="method-heading">
          <a href="Class.src/M000022.html" target="Code" class="method-signature"
            onclick="popupCode('Class.src/M000022.html');return false;">
          <span class="method-name">json_creatable?</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
Returns true, if this class can be used to create an instance from a
serialised <a href="JSON.html">JSON</a> string. The class has to implement
a clas