code: def num_strips(self):
  		
  
  		num = self._libinput.libinput_device_tablet_pad_get_num_strips(
  			self._handle)
  		if num < 0:
  			raise AttributeError('This device is not a tablet pad device')
  		return num
docs: The number of strips a device with
  		the :attr:`~libinput.constant.DeviceCapability.TABLET_PAD`
  		capability provides.
  
  		Returns:
  			int: The number of strips or 0 if the device has no strips.
  		Raises:
  			AttributeError