ass="n">math</span><span class="o">.</span><span class="n">divide</span><span class="p">(</span><span class="n">_addup</span><span class="p">,</span> <span class="n">_divider</span><span class="p">)</span>
</span><span id="Sublosses.window_diff-56"><a href="#Sublosses.window_diff-56"><span class="linenos">56</span></a>    <span class="k">return</span> <span class="n">tf</span><span class="o">.</span><span class="n">reduce_mean</span><span class="p">(</span><span class="n">_result</span><span class="p">)</sp