5;&gt;</span></span>
  <span><span class="label">f</span>:<span>(<span><a href="../FieldPath/index.html#type-t">FieldPath.t</a> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'a</span>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="type-var">'a</span> list</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-map_return_of"><a href="#val-map_return_of" class="anchor"></a><code><span><span class="keyword">val</span> map_r