Это старая версия документа!

protocol CoffeMakerDelegate {
func makeCoffe(amount: Int) -> Int
}

class Client {
var name = "name"
var cofeMaker: CoffeMakerDelegate 
}

struct Officiant: CoffeMakerDelegate {
funk makeCoffe(amount: Int) -> Int {
let price = 350
let count = amount / price
return count 
}

}