p">:</span>
            <span class="n">feature_dim</span> <span class="o">=</span> <span class="n">hidden_dim</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">output_dim</span> <span class="o">=</span> <span class="n">feature_dim</span> <span class="o">*</span> <span class="mi">2</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">node_output_dim</span> <span class="o">=</span> <span class="n">feature_dim</span>
        <span class="bp">self<