span class="keywordsign">'</span>a<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;ksprintf&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;(string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>d)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(<span class="keywordsign">'</span>a,&nbsp;unit,&nbsp;string,&nbsp;<span class="keywordsign">'</span>d)&nbsp;<span class="constructor">Stdlib</span>.format4&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</s