code: def _getSensorLimits(self):
          
          limits = []
          limits.extend(self._getTotalDemandLimits())
  #        limits.extend(self._getDemandLimits())
  #        limits.extend(self._getPriceLimits())
  
  #        limits.extend(self._getVoltageSensorLimits())
  
  #        limits.extend(self._getVoltageMagnitudeLimits())
  #        limits.extend(self._getVoltageAngleLimits())
  #        limits.extend(self._getVoltageLambdaLimits())
  #        limits.extend(self._getFlowLimits())
  
          logger.debug("Sensor limits: %s" % limits)
          return limits
docs: Returns a list of 2-tuples, e.g. [(-3.14, 3.14), (-0.001, 0.001)],
              one tuple per parameter, giving min and max for that parameter.