Where to download HTMLMesh.js?

Hi,

I’m trying to insert HTML meshes into a WebXR project, like in the demo here:
https://threejs.org/examples/?q=sandbox#webxr_vr_sandbox

Since I’m running the project in a static page without NPM, I need to include the file as a tag. Can someone please tell me where I can download the required HTMLMesh.js file?

Thank You!