lus</nav><h1>Module <code>TSL.Fold_Map_Plus</code></h1></header><h3 class="heading">Parameters</h3><ul><li><code><a href="argument-1-P/index.html">P</a> : <a href="../../../../../../../../Bastet/Interface/index.html#module-type-PLUS">Bastet.Interface.PLUS</a></code></li></ul><h3 class="heading">Signature</h3><dl><dt class="spec value" id="val-fold_map"><a href="#val-fold_map" class="anchor"></a><code><span class="keyword">val</span> fold_map : <span>(<span class="type-var">'a</span> <span>&#45;&gt;</span> <