func foo() {
        var myId = 0
        loadMyId(with: "Sam") { id in
            myId = id
        }
        print(myId)
    }

    func foo1() {
        var myId = 0
        loadMyId(with: "Sam", complete: { id in
            myId = id
        })
        print(myId)
    }

    func foo3() {
        var myId = 0
        loadMyId(with: "Sam") {
            myId = $0
        }
        print(myId)
    }