code class="type">(string -&gt; 'd) -&gt; ('a, unit, string, 'd) <a href="Pervasives.html#TYPEformat4">format4</a> -&gt; 'a</code></pre><div class="info ">
Same as <code class="code">sprintf</code> above, but instead of returning the string,
   passes it to the first argument.<br>
<b>Since</b> 3.09.0<br>
</div>

<pre><span id="VALkbprintf"><span class="keyword">val</span> kbprintf</span> : <code class="type">(<a href="Buffer.html#TYPEt">Buffer.t</a> -&gt; 'd) -&gt;<br>       <a href="Buffer.html#TYPEt">Buff