45;&gt;</span></span> <span><a href="../Cell/index.html#type-t">Cell.t</a> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'accum</span>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span class="type-var">'accum</span></span></code></div><div class="spec-doc"><p>Folds over all cells under a variable and field path. A field path is &quot;terminal&quot; if its length (that includes the prefixed fields given as parameters) is equal to <a href="../../../IBase/Config/index.html#val-li