 bool)</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-partial">partial</a> <span class="arrow">&#45;&gt;</span></span> bool</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-exists_str_partial"><a href="#val-exists_str_partial" class="anchor"></a><code><span><span class="keyword">val</span> exists_str_partial : <span><span class="label">f</span>:<span>(<span>string <span class="arrow">&#45;&gt;</span></span> bool)</span> <span class="arrow">&#4