d="val-filter_map"><a href="#val-filter_map" class="anchor"></a><code><span class="keyword">val</span> filter_map : <span>(<a href="index.html#type-elt">elt</a> <span>&#45;&gt;</span> <span><a href="index.html#type-elt">elt</a> option</span>)</span> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-partition"><a href="#val-partition" class="anchor"></a><code><span class="keyword">val</span> partition : 