">return</span> <span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">ax</span><span class="p">,</span> <span class="n">m</span>

    <span class="n">_</span><span class="p">,</span> <span class="n">adv_x</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">tf</span><span class="o">.</span><span class="n">while_loop</span><span class="p">(</span>
        <span class="n">cond</span><span class="p">,</spa