code: def set_position(self, anchor_id, position):
          
          x = position[0]
          y = position[1]
          z = position[2]
          data = struct.pack('<Bfff', LoPoAnchor.LPP_TYPE_POSITION, x, y, z)
  
          self.crazyflie.loc.send_short_lpp_packet(anchor_id, data)
docs: Send a packet with a position to one anchor.
          :param anchor_id: The id of the targeted anchor. This is the first byte
          of the anchor address.
          :param position: The position of the anchor, as an array