">'a</span></span></code></div><div class="spec-doc"><p>Emit a message at the current indentation level, if enabled.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-call"><a href="#val-call" class="anchor"></a><code><span><span class="keyword">val</span> call : <span>string <span class="arrow">&#45;&gt;</span></span> <span><span>(<span><a href="#type-pf">pf</a> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'a</span>)</span> <span class="arrow">&#45;&gt;</s