 <span><span>(<span><span class="xref-unresolved">Stdlib</span>.Format.formatter <span class="arrow">&#45;&gt;</span></span> <span>unit <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-debug" class="anchored"><a href="#val-debug" class="anchor"></a><code><span><span class="keyword">val</span> debug : <span><span>(<span><span class="xref-unresolved">Stdlib</span>.Format.for