Some qs,l,qd)</code>. If present, the initial transition <code>l,qi</code> is replaced by <code>l',qi'</code> where <code>(None,l',qi') = f (None, l, qi)</code>. Warning: updating the source and/or destination state in a transition may result in a incoherent LTS description. This function should essentially be viewed as a variant of <code>map_label</code> in which the transformation function <code>f</code> can take the source and destination state into account.</p></div></div><div class="odoc-spec"><div cla