yword">val</span>&nbsp;set_binary_mode_out&nbsp;:&nbsp;<span class="constructor">Pervasives</span>.out_channel&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;bool&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;open_in&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Pervasives</span>.in_channel<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;open_in_bin&nbsp;:&nbsp;string&nbsp;<span class="keywo