ass="w"> </span><span class="nv">$PORT</span>
</pre></div>
</div>
<p>Step 3. In the <code class="docutils literal notranslate"><span class="pre">SDK_DIR/python/examples/area_callback</span></code>, launch the crosswalk servicer by running</p>
<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>python3<span class="w"> </span>area_callback_crosswalk.py<span class="w"> </span>--port<span class="w"> </span><span class="nv">$PORT</span><span class="w"> </span><