 
   override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
     if #available(iOS 14.0, *) {
-      return pickerSections[section] == .datePicker ? datePickerStyles.count : 1
+      return self.pickerSections[section] == .datePicker ? self.datePickerStyles.count : 1
     }
     return 1
   }


    switch pickerSections[indexPath.section] {
    case .datePicker:
      guard let cell = tableView.dequeueReusableCell(withIdentifier: datePickerCellIdentifier) as? DatePickerTableViewCell else {
        fatalError("Expecting to dequeue a \(DatePickerTableViewCell.self) from the table view")
      }

      if #available(iOS 14.0, *) {
        cell.datePicker.preferredDatePickerStyle = datePickerStyles[indexPath.row]
      }

      return cell


      return cell
    case .colorPicker:
      let cell = UITableViewCell(style: .subtitle, reuseIdentifier: self.tableViewCellIdentifier)
      cell.textLabel?.text = "Color Picker"
      cell.detailTextLabel?.text = "Tap here to launch the new color picker from iOS 14"

