code: def get_override_configuration(self):
          
          res = {}
          properties = self.__class__.properties
          for prop, entry in list(properties.items()):
              if entry.override:
                  res[prop] = getattr(self, prop)
          return res
docs: Some parameters can give as 'overridden parameters' like use_timezone
          so they will be mixed (in the scheduler) with the standard conf sent by the arbiter
  
          :return: dictionary of properties
          :rtype: dict