ructor">Pretty</span>.doc)&nbsp;<span class="constructor">Pervasives</span>.format4&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;gprintf&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;(<span class="constructor">Pretty</span>.doc&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(<span class="keywordsign">'</span>b,&nbsp;unit,&nbsp;<span class=