span class="o">.</span><span class="n">slicer</span><span class="o">.</span><span class="n">column_slice</span><span class="p">(</span>
                <span class="p">(</span><span class="n">mlp_inw</span><span class="p">,</span> <span class="n">mlp_inb</span><span class="p">),</span>
                <span class="p">(</span><span class="n">mlp_inw_attr</span><span class="p">,</span> <span class="n">mlp_inb_attr</span><span class="p">),</span>
            <span class="p">),</span>
        <span class="p">)<