class Wesley: Developer {
  let name = "Wesley de Groot"
  let age = 35
  let location: Location = .Netherlands
  let languages: [Languages] = [.Dutch, .English]

  let programmingLanguages = ["Swift", "Objective-C", "JavaScript", "PHP"]
  let markup = ["HTML", "CSS"]

  func details() -> String {
      var details = ""
      for detail in Mirror(reflecting: self).children {
          guard let label = detail.label else { continue }
          details.append("\(label.capitalized): \(detail.value)\n")
      }
      return details
  }
}

print(Wesley().details())