def distance(self):
		"""The current distance from the tablet's sensor,
		normalized to the range [0, 1] and whether it has changed in this event.

		If this axis does not exist on the current tool, this property is
		(0, :obj:`False`).

		Returns:
			(float, bool): The current value of the the axis.
		"""

		distance = self._libinput.libinput_event_tablet_tool_get_distance(
			self._handle)
		changed = self._libinput. \
			libinput_event_tablet_tool_distance_has_changed(self._handle)
		return distance, changed