">=</span> <span class="n">input_dim</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">edge_input_dim</span> <span class="o">=</span> <span class="n">edge_input_dim</span>
        <span class="k">if</span> <span class="n">concat_hidden</span><span class="p">:</span>
            <span class="n">feature_dim</span> <span class="o">=</span> <span class="n">hidden_dim</span> <span class="o">*</span> <span class="n">num_layer</span>
        <span class="k">else</span><span class="