How to use Metal to draw ARMeshAnchor?

I use MTKView and ARSession, and set:

configuration.sceneReconstruction = .mesh   
session.run(configuration)

Through

let meshAnchors = frame!.anchors.compactMap { $0 as? ARMeshAnchor }

I can get all ARMeshAnchor.

How to render these meshes into Metal, don’t need to care about the texture.