s="n">is_sparse</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">verbose</span><span class="p">):</span>
<span class="w">            </span><span class="sd">&quot;&quot;&quot;This is the function that is called by each job but with</span>
<span class="sd">            different parts of the data.</span>
<span class="sd">            &quot;&quot;&quot;</span>
            <span class="c1"># Initialize output</span>
            <span class="k">if</span> <span cl