codemod is removing async from methods

[gitKrystan]

Input:

export default Controller.extend({
  async save() {
    await this.something;
  },
});

Expected Output:

export default class MyController extends Controller {
  async save() {
    await this.something;
  }
}

Actual Output:

export default class MyController extends Controller {
  save() {
    await this.something;
  }
}

[gitKrystan]

Check generators also.