><span class="o">&amp;</span><span class="w"> </span><span class="n">taskflow</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w">  </span><span class="k">return</span><span class="w"> </span><span class="n">taskflow</span><span class="p">.</span><span class="n">emplace</span><span class="p">([](){</span>
<span class="w">    </span><span class="c1">// create a CUDA graph with a single-threaded task</span>
<span class="w">    </span><span class="n">tf</span><span cl