pClass"</code> member, its decoded value must name an existing class <var>K</var>.  The encompassing <code class="json">Object</code>, <var>D</var>, is then decoded to an instance of <var>K</var>.  The <code class="json">Value</code>s of all <code class="json">Member</code>s of <var>D</var> whose keys, when decoded, yield names of slots in <var>K</var> are assigned to those slots.  All other <code class="json">Member</code>s are discarded.  Also, if <var>K</var> has a slot whose name is the same as <code cl