npm install symbol-treeyarn add symbol-treepnpm add symbol-tree<script src="https://fastly.jsdelivr.net/npm/symbol-tree"></script><script src="https://unpkg.com/symbol-tree"></script><script type="module">
import symboltree from 'https://cdn.jsdelivr.net/npm/symbol-tree/+esm';
</script><script type="module">
import symboltree from 'https://cdn.skypack.dev/symbol-tree';
</script>