">1</span><span class="p">,</span> <span class="n">n_features</span><span class="p">),</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">float32</span><span class="p">)</span>

        <span class="n">index</span> <span class="o">=</span> <span class="mi">0</span>
        <span class="k">for</span> <span class="n">prop</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">properties</spa