n">dtype</span><span class="o">=</span><span class="s1">&#39;float32&#39;</span><span class="p">)</span>
</span><span id="Sublosses.window_diff-41"><a href="#Sublosses.window_diff-41"><span class="linenos">41</span></a>    <span class="n">_masks</span> <span class="o">=</span> <span class="n">tf</span><span class="o">.</span><span class="n">eye</span><span class="p">(</span><span class="n">_divider</span><span class="p">,</span> <span class="n">num_columns</span><span class="o">=</span><span class="n">_b</s