a> &#x00BB; EzSessionServer</nav><h1>Module <code>EzSessionServer</code></h1></header><dl><dt class="spec value" id="val-random_challenge"><a href="#val-random_challenge" class="anchor"></a><code><span class="keyword">val</span> random_challenge : unit <span>&#45;&gt;</span> string</code></dt></dl><div class="spec module-type" id="module-type-SessionStore"><a href="#module-type-SessionStore" class="anchor"></a><code><span class="keyword">module</span> <span class="keyword">type</span> <a href="module-type-S