ode">s</code> in place, replacing the byte at index <code class="code">n</code>
    with <code class="code">c</code>.</p>
</div>
<ul class="info-attributes">
<li><b>Raises</b> <code>Invalid_argument</code> if <code class="code">n</code> is not a valid index in <code class="code">s</code>.</li>
</ul>
</div>

<pre id="VALcreate">val create : int -&gt; bytes</pre><div class="info ">
<div class="info-desc">
<p><code class="code">create&nbsp;n</code> returns a new byte sequence of length <code class="code">n</co