ytes<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;empty&nbsp;:&nbsp;bytes<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;copy&nbsp;:&nbsp;bytes&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;bytes<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;of_string&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;bytes<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;to_string&nbsp;:&nbsp;bytes&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string<br>
&nbsp;&nbsp;<span