How to use dockyard/ember-cli-i18n translations in router.js file for ember-cli app?

Earlier I was using ember-i18n which was installed using bower and globally available. I could use translations everywhere without importing anything.

But now we are switching to ember-cli-i18n installed via package.json and which can be used in route, model, component, controller because of application.inject they are doing in initializer.

Problem is I want to use translations in my router.js file as well but unable to do so, like this

this.resource("posts", { path: "/" + (t("posts.slug", {})) }

locale/en.js looks like below

export default { posts: { slug: "posts" } }

Any help or suggestion how to achieve this?