<!-- This template is for bugs relating to Ember.js type information. Please fill out all of the required information below --> ### Which package(s) does this problem pertain to? - [x] Other (Your bug form doesn't include @types/ember__destroyable) ### What are instructions we can follow to reproduce the issue? Create a new Ember app with ember 4.1, add ember-cli-typescript including running its blueprint. ### Now about that bug. What did you expect to see? Try to import from `@ember/destroyable` in your app. It's a type error. You can manually install `@types/ember__destroyable` to solve the problem.