span class="constructor">Digest</span>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;source&nbsp;:&nbsp;<span class="constructor">Consistbl</span>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;extract&nbsp;:&nbsp;string&nbsp;list&nbsp;<span class="keywordsign">-&gt;</span>&nbsp