l-session_id_length"><a href="#val-session_id_length" class="anchor"></a><code><span class="keyword">val</span> session_id_length : <span><a href="../Types/Session/index.html#type-t">Types.Session.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>session_id_length sess</code></p><p>The length of the buffer needed to return the id for this session.</p></dd></dl><dl><dt class="spec value" id="val-session_id"><a href="#val-session_id" class="anchor"></a><code><span c