ld : <span><span class="optlabel">?axis</span>:int <span class="arrow">&#45;&gt;</span></span> <span><span>(<span><a href="#type-elt">elt</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-elt">elt</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-elt">elt</a>)</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-elt">elt</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <a href="#ty