code: def get_device_type(device_type=0):
      
      device_types = {
          0: "Unknown",
          1: "Classic - BR/EDR devices",
          2: "Low Energy - LE-only",
          3: "Dual Mode - BR/EDR/LE"
      }
      if device_type in [0, 1, 2, 3]:
          return_value = device_types[device_type]
      else:
          return_value = device_types[0]
      return return_value
docs: Return the device type from a device_type list.