lass="Keyword">func</span> <a href="#newJsSet"><span class="Identifier">newJsSet</span></a><span class="Other">(</span><span class="Other">)</span><span class="Other">:</span> <a href="jssets.html#JsSet"><span class="Identifier">JsSet</span></a> {.<span class="Identifier">importjs</span><span class="Other">:</span> <span class="StringLit">&quot;new Set()&quot;</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</sp