_MCTN.__init__">
<span class="sig-name descname"><span class="pre">__init__</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">seq2seq_0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">seq2seq_1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">regression_encoder</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">head</span></span></em>, <em class="sig-param"><span class="n"><span