pan class="nb">super</span><span class="p">(</span><span class="n">GraphAttentionNetwork</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>

        <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">hidden_dims</span><span class="p">,</span> <span class="n">Sequence</span><span class="p">):</span>
            <span cla