code: def enter_plane(self, plane):
          
          try:
              cmd = CONF['driver'][self.platform]['planes'][plane]
              self.plane = plane
          except KeyError:
              cmd = None
  
          if cmd:
              self.log("Entering the {} plane".format(plane))
              self.device.send(cmd)
docs: Enter the device plane.
  
          Enter the device plane a.k.a. mode, i.e. admin, qnx, calvados