class="nf">get</span><span class="p">(</span><span class="n">dataWithKey</span> <span class="nv">key</span><span class="p">:</span> <span class="kt">String</span><span class="p">,</span> <span class="nv">completionHandler</span><span class="p">:</span> <span class="kt"><a href="../Classes/Poly.html">Poly</a></span><span class="o">.</span><span class="kt">CompletionHandler</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">)</span></code></pre>

               