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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 reset(self):
 """ Resets the state of this pipette, removing associated placeables, setting current volume to zero, and resetting tip tracking """

        self.tip_attached = False
        self.placeables = []
        self.previous_placeable = None
        self.current_volume = 0
        self.reset_tip_tracking()