code: def devices(self):
          
          if self._all_devices:
              return self._all_devices
  
          self._all_devices = {}
          self._all_devices['cameras'] = []
          self._all_devices['base_station'] = []
  
          url = DEVICES_ENDPOINT
          data = self.query(url)
  
          for device in data.get('data'):
              name = device.get('deviceName')
              if ((device.get('deviceType') == 'camera' or
                   device.get('deviceType') == 'arloq' or
                   device.get('deviceType') == 'arloqs') and
                      device.get('state') == 'provisioned'):
                  camera = ArloCamera(name, device, self)
                  self._all_devices['cameras'].append(camera)
  
              if (device.get('state') == 'provisioned' and
                      (device.get('deviceType') == 'basestation' or
                       device.get('modelId') == 'ABC1000')):
                  base = ArloBaseStation(name, device, self.__token, self)
                  self._all_devices['base_station'].append(base)
  
          return self._all_devices
docs: Return all devices on Arlo account.