">"lispSuperclasses"</code>.  All <code class="json">Member</code>s with other keys are ignored.  The <code class="json">Value</code> for any of <code class="json-literal">"lispPackage"</code>, <code class="json-literal">"lispClass"</code>, and <code class="json-literal">"lispSuperclasses"</code> may be <code class="json-literal">null</code> which is equivalent to omitting that <code class="json">Member</code>.  A prototype <var>S</var> which is a <code class="json">String</code> (rather than an <code class