><a href="#C9_L2" id=C9_L2></a></span></code></pre>
<p>Let's assume we have an action handler that prints its first parameter:</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript"><span class="token literal-property property">actions</span><span class="token operator">:</span> <span class="token punctuation">{</span>
  <span class="token function">bandDidChange</span><span class="token punctuation">(</span><span class="token parameter">newValue</span><span class="to