uct as a function. Since structs are
immutable, you cannot add key-value pairs
</p>
<pre class="mendoza-codeblock"><code data-language="janet">(<span class="mdzsyn-coresym">def</span> <span class="mdzsyn-symbol">st</span> {<span class="mdzsyn-keyword">:a</span> <span class="mdzsyn-number">1</span> <span class="mdzsyn-keyword">:b</span> <span class="mdzsyn-number">2</span>})

(<span class="mdzsyn-coresym">get</span> <span class="mdzsyn-symbol">st</span> <span class="mdzsyn-keyword">:a</span>) <span class="md