r of functions, including:</p>
<ul>
<li>Creating action callbacks, which bind the <em>context</em> of the callback (the
component/controller).</li>
<li>Adding arguments to action callbacks:</li>
</ul>
<pre class="language-handlebars line-numbers"><code class="handlebars language-handlebars">    <span class="token comment">&lt;!-- passes 123 to the 'setValue' action --></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>MyComponent</span> <span class="token 