>input</span>
    <span class="k">elif</span> <span class="n">is_list_of_tensors</span><span class="p">(</span><span class="nb">input</span><span class="p">):</span>
        <span class="k">if</span> <span class="n">point_dimension</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
            <span class="n">point_dimension</span> <span class="o">=</span> <span class="nb">input</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o"