       bool ref -&gt; (Format.formatter -&gt; 'a -&gt; unit) -&gt; 'a -&gt; 'a</code></pre><div class="info ">
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<p><code class="code">print_if&nbsp;ppf&nbsp;flag&nbsp;fmt&nbsp;x</code> prints <code class="code">x</code> with <code class="code">fmt</code> on <code class="code">ppf</code> if <code class="code">b</code> is true.</p>
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<pre><span id="TYPEfilepath"><span class="keyword">type</span> <code class="type"></code>filepath</span> = <code class="type">string</code> </