How to use Eloquent based raw expressions?

Question

Laravel

How is this request

select * from orders where orders.id in (select min(id) as id from "orders" where cost > 0);

Write it down like this:
Order::whereIn('id', Order::where(блаблаббла))

Answer 1

Order::whereIn('id', Order::selectRaw('MIN(id)')->where('cost', '>', 0));