on</span><span class="p">[</span><span class="s1">&#39;channelCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">channel_count</span>
        <span class="n">json</span><span class="p">[</span><span class="s1">&#39;channelCountMode&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">channel_count_mode</span><span class="o">.</span><span class="n">to