It looks like doing ember g pouch-model foo should generate a file defining a new model that includes the rev attribute, i.e. by extending from addon/model.js. I expected to see something like this but instead I see this:
// ember-cli 3.13.1
// ember-pouch 6.0.0
// app/pouch-models/foo.js
import DS from 'ember-data';
const { Model } = DS;
export default Model.extend({
});