iter_itransitions f s</code> applies function <code>f</code> to all initial transitions of <code>s</code></p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-fold_itransitions"><a href="#val-fold_itransitions" class="anchor"></a><code><span><span class="keyword">val</span> fold_itransitions : <span><span>(<span><a href="#type-itransition">itransition</a> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <