code: def rerouteTraveltime(self, vehID, currentTravelTimes=True):
          
          if currentTravelTimes:
              time = self._connection.simulation.getCurrentTime()
              if time != self.LAST_TRAVEL_TIME_UPDATE:
                  self.LAST_TRAVEL_TIME_UPDATE = time
                  for edge in self._connection.edge.getIDList():
                      self._connection.edge.adaptTraveltime(
                          edge, self._connection.edge.getTraveltime(edge))
          self._connection._beginMessage(
              tc.CMD_SET_VEHICLE_VARIABLE, tc.CMD_REROUTE_TRAVELTIME, vehID, 1 + 4)
          self._connection._string += struct.pack("!Bi", tc.TYPE_COMPOUND, 0)
          self._connection._sendExact()
docs: rerouteTraveltime(string, bool) -> None Reroutes a vehicle. If
          currentTravelTimes is True (default) then the current traveltime of the
          edges is loaded and used for rerouting. If currentTravelTimes is False
          custom travel times are used. The various functions and options for
          customizing travel times are described at http://sumo.dlr.de/wiki/Simulation/Routing
  
          When rerouteTraveltime has been called once with option
          currentTravelTimes=True, all edge weights are set to the current travel
          times at the time of that call (even for subsequent simulation steps).