How to import qstash into deno edge function?

Hi, simple question, I think, but I can't figure out.

I want to import this module into my deno edge function so I can use the Client and Receiver in some webhooks for background jobs: https://deno.land/x/upstash_qstash@v2.5.2

I can't get the import to work. Not sure if it requires an import map or I can just declare it at the top of the edge function file in typescript.