>&#45;&gt;</span> unit)</span> <span>&#45;&gt;</span> unit</code></dt></dl><aside><p>Register Handler</p></aside><dl><dt class="spec value" id="val-empty"><a href="#val-empty" class="anchor"></a><code><span class="keyword">val</span> empty : <span><span class="type-var">'a</span> <a href="Directory/index.html#type-directory">Directory.directory</a></span></code></dt><dt class="spec value" id="val-register_res"><a href="#val-register_res" class="anchor"></a><code><span class="keyword">val</span> register_res