How to subscript value using KeyPath #CodePiece #tryswiftnyc

CodePiece.swift

struct User {
    var name: String
    var location: String
    var age: Int
}

var user = User(name: "Blob", location: "NYC", age: 42)

\User.name
// WritableKeyPath<User, String>

user[keyPath: \User.name]
user[keyPath: \User.name] = "Blob 2"
user.name
user.name = "Blob"