 the masks of the window.</span>
</span><span id="Sublosses.window_diff-39"><a href="#Sublosses.window_diff-39"><span class="linenos">39</span></a>    <span class="n">_n_shifts</span> <span class="o">=</span> <span class="n">tf</span><span class="o">.</span><span class="n">math</span><span class="o">.</span><span class="n">subtract</span><span class="p">(</span><span class="n">w_size</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
</span><span id="Sublosses.window_diff-40"><