"></a><code><span><span class="keyword">type</span> <span>('a, 'b) owl_arr_op29</span></span><span> =
  <span><span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="#type-owl_arr">owl_arr</a></span> <span class="arrow">&#45;&gt;</span></span>
  <span><span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="#type-owl_arr">owl_arr</a></span> <span class="arrow">&#45;&gt;</span></span>
  <span><span><span>(<span class="type-var">