code: def road_closed(self):
          
          resource_list = self.traffic_incident()
          road_closed = namedtuple('road_closed', 'road_closed')
          if len(resource_list) == 1 and resource_list[0] is None:
              return None
          else:
              try:
                  return [road_closed(resource['roadClosed'])
                          for resource in resource_list]
              except (KeyError, TypeError):
                  return [road_closed(resource['RoadClosed'])
                          for resource in resource_list]
docs: Retrieves the road closed information for the incident/incidents
          from the output response
  
          Returns:
              road_closed(namedtuple): List of named tuples of road closed
              information for the incident/incidents