"VALsub_string"><span class="keyword">val</span> sub_string</span> : <code class="type">bytes -&gt; pos:int -&gt; len:int -&gt; string</code></pre><div class="info ">
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<p>Same as <code class="code">sub</code> but return a string instead of a byte sequence.</p>
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<pre><span id="VALextend"><span class="keyword">val</span> extend</span> : <code class="type">bytes -&gt; left:int -&gt; right:int -&gt; bytes</code></pre><div class="info ">
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<p><code class