m-code"><span class="n">executor</span><span class="p">.</span><span class="n">run</span><span class="p">(</span><span class="n">taskflow</span><span class="p">).</span><span class="n">wait</span><span class="p">();</span></pre><p>Three possible outputs are shown below:</p><pre class="m-code"><span class="c1"># possible output 1</span>
ready
f1<span class="o">(</span>A<span class="o">)</span>
f2<span class="o">(</span>A<span class="o">)</span>
f1<span class="o">(</span>B<span class="o">)</span>
f2<span clas