rg</span>
    <span class="k">elif</span> <span class="n">arg</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
        <span class="k">if</span> <span class="n">default</span> <span class="ow">in</span> <span class="p">[</span><span class="n">torch</span><span class="o">.</span><span class="n">rand</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span><span class="n">randn</span><span class="p">,</span> <span class="n">torch</span><span clas