nv2d_backward_kernel : <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <span><span>int array</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-arr">arr</a></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-conv3d_backward_input"><a href="#val-conv3d_backward_input" class