<code class="type">(<a href="Pervasives.html#TYPEout_channel">out_channel</a> -&gt; 'd) -&gt;<br>       <a href="Pervasives.html#TYPEout_channel">out_channel</a> -&gt;<br>       ('a, <a href="Pervasives.html#TYPEout_channel">out_channel</a>, unit, 'd) <a href="Pervasives.html#TYPEformat4">format4</a> -&gt; 'a</code></pre><div class="info ">
Same as <code class="code">fprintf</code>, but instead of returning immediately,
   passes the out channel to its first argument at the end of printing.<br>
<b>Since</b>