tensor</span>
<span class="sd">            metric (dict, optional): if specified, output metrics to this dict</span>

<span class="sd">        Returns:</span>
<span class="sd">            dict with ``node_feature`` and ``graph_feature`` fields:</span>
<span class="sd">                node representations of shape :math:`(|V|, d)`, graph representations of shape :math:`(n, d)`</span>
<span class="sd">        """</span>
        <span class="n">hiddens</span> <span class="o">=</span> <span class="p">[]</span>
