bsp;<span class="keyword">val</span>&nbsp;docArray&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;?sep:<span class="constructor">Pretty</span>.doc&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;(int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Pretty</span>.doc)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywo