pan> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">def</span></span> <span class="symbol"><span class="name">map</span><span class="tparams">[<span name="X">X</span>]</span><span class="params">(<span name="fn">fn: (<span name="provingground.translation.Translator.Empty.O" class="extype">O</span>) =&gt; <span name="provingground.translation.Translator.map.X" class="extype">X</span></span>, <span name="ufn">ufn: (<span name="provingground.translation.Translator.map.X" class="e