ad freshly returned.  Handlers for <code class="json">Character</code>s of <code class="json">String</code>s are somewhat specific in that they are passed characters rather than decoded values but otherwise they fall neatly with member handlers.  The value of the last constructor to return is also the return value of <code class="api-name">decode-json</code>.</p>

<p>As a trivial example, if every handler has the value of <code>(constantly t)</code>, the decoder semantics is that of a simple validator: it r