pan class="o">=</span><span class="mi">2</span><span class="p">,</span>
                 <span class="n">num_s2s_step</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">short_cut</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">batch_norm</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">activation</span><span class="o">=</span><span class="s2">"relu"</span><span 