@ember/test-helpers/type-tests/tsconfig.json

{
  "extends": "@tsconfig/ember",
  "compilerOptions": {
    "baseUrl": "..",
    "paths": {
      "@ember/test-helpers": [
        "./addon-test-support/@ember/test-helpers"
      ],
      "@ember/test-helpers/*": [
        "./addon-test-support/@ember/test-helpers/*"
      ],
      "*": [
        "types/*"
      ]
    }
  },
  "include": ["api.ts", "../types/**/*"]
}