><span class="optlabel">?trans</span>:bool <span class="arrow">&#45;&gt;</span></span> <span><span class="optlabel">?typ</span>:<span>[ `l <span>| `n</span> <span>| `u</span> ]</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="../index.html#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../index.html#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <a href="../index.html#type-arr">arr</a></span></code></div></div><div class="odoc-spec"><div class="s