sp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;decode_int32&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int32&nbsp;*&nbsp;int<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;decode_int64&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int64&nbsp;*&nbsp;int<br>
&nbsp;&nbsp;<span class="keyword">va