ges to `strong_count` and `weak_count`
-->
<h4 id="strong_countとweak_countへの変更を可視化する"><a class="header" href="#strong_countとweak_countへの変更を可視化する"><code>strong_count</code>と<code>weak_count</code>への変更を可視化する</a></h4>
<!--
Let’s look at how the `strong_count` and `weak_count` values of the `Rc<Node>`
instances change by creating a new inner scope and moving the creation of
`branch` into that scope. By doing so, we can see what happens when `br