e><span><span class="keyword">val</span> format : <span><span><span class="type-var">'a</span> <a href="#type-typ">typ</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="xref-unresolved">Stdlib</span>.Format.formatter <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-string_of"><a href="#val-string_of" class="anchor"