And I much appreciate your feedback :) Whenever I try to think of what was the best practice idiom, I always mix up map[T]struct{} and map[T]interface{}, due to

And I much appreciate your feedback :) Whenever I try to think of what was the best practice idiom, I always mix up map[T]struct{} and map[T]interface{}, due to the curly brackets at the end. As you can tell, it's been a while since I've written Go.