class="mdzsyn-coresym">def</span> <span class="mdzsyn-symbol">thread</span> (<span class="mdzsyn-coresym">thread/new</span> <span class="mdzsyn-symbol">worker</span>))
<span class="mdzsyn-comment"># Thread objects support the :send method as an alias for thread/send.</span>
(<span class="mdzsyn-keyword">:send</span> <span class="mdzsyn-symbol">thread</span> <span class="mdzsyn-string">"Hello!"</span>)</code></pre><h2>Limitations of messages
</h2>
<p>Since threads do not share Janet heaps, all values sent as