mod front_of_house {
pub mod hosting {
pub fn add_to_waitlist() {}
fn seat_at_table() {}
}
mod serving {
fn take_order() {}
fn serve_order() {}
fn take_payment() {}
}
}
pub fn eat_at_restaurant() {
crate::front_of_house::hosting::add_to_waitlist();
front_of_house::hosting::add_to_waitlist();
}