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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def slot(self):
 		"""The slot of this touch event. 		See the kernel's multitouch protocol B documentation for more 		information. 		If the touch event has no assigned slot, for example if it is from 		a single touch device, this property returns -1. 		For events not of type :attr:`~libinput.constant.EventType.TOUCH_DOWN`, 		:attr:`~libinput.constant.EventType.TOUCH_UP`, 		:attr:`~libinput.constant.EventType.TOUCH_MOTION` or 		:attr:`~libinput.constant.EventType.TOUCH_CANCEL`, this property 		raises :exc:`AttributeError`. 		Returns: 			int: The slot of this touch event. 		Raises: 			AttributeError 		"""


		if self.type == EventType.TOUCH_FRAME:
			raise AttributeError(_wrong_prop.format(self.type))
		return self._libinput.libinput_event_touch_get_slot(self._handle)