Size or Resolution token in Output templates

I’d like a Resolution or Size token that reflects the export texture resolution (e.g., 2K, 4K) for use directly in Output Template file names. Right now, I have to add this manually or switch between different templates, a step I’d prefer to avoid in the middle of production. It would be especially useful when exporting batches of different resolutions without overwriting my existing texture maps.
Cheers!