Get an images URL by it's variant name

Retired Boards Appdev Custom Storefronts
1

How to get a URL of an image named as a variant, from the asset folder?

I want to get like

“https://cdn.shopify.com/s/files/#/####/####/####/files/variantname.png”

This doesn’t working

{{ ‘variant.title’.png | file_url }}