Accessing Ember Service from within Service Worker

For context, I'm attempting to implement Push Notifications using Service Workers and Push Subscriptions.

I'm using Ember Service Worker to help with adding Service Workers to an existing Ember project. This existing project already has a session service which handles maintaining user session information, and I would like access to that service from the context of the Service Worker(in order to map push subscriptions to users), however I can't seem to figure that out.