d">Module</span> <span class="module-path">Exenum_lwt__Lwt_tester</span></h1></header><h3>Lwt version of Exenum.tester</h3><div class="spec val" id="val-tester"><a href="#val-tester" class="anchor"></a><div class="def val"><code><span class="keyword">val </span>tester : <span class="type-var">'a</span> <a href="../Exenum/index.html#type-t">Exenum.t</a> <span class="keyword">&#8209;&gt;</span> ?&#8288;from:Z.t <span class="keyword">&#8209;&gt;</span> ?&#8288;upto:Z.t <span class="keyword">&#8209;&gt;</span> 