title: Printing a property from html tag
body: <p>Say you have something like this:</p>
  <pre><code>&lt;input id=&quot;state&quot; type=&quot;radio&quot; name=${this.group} .checked=${this.checked} /&gt;
  </code></pre>
  <p>(Code from <a href="https://stackoverflow.com/questions/61490521/litelement-dot-with-html-elements-attribute-property">LitElement Dot with HTML elements attribute/property</a> as I was researching what the dot meant)</p>
  <p>Is it possible to print out what <code>${this.checked}</code> is? If so, how?</p>
  <p>Clarification: Is it possible to print it from, for example, another file?</p>
  <p>Like if you wanted the id, it would be something like this.input.getAttribute('id'), but for the .checked</p>