docs: def start_time(self):
          """Retrieves the start time of the incident/incidents from the output
          response
  
          Returns:
              start_time(namedtuple): List of named tuples of start time of the
              incident/incidents
          """
          resource_list = self.traffic_incident()
          start_time = namedtuple('start_time', 'start_time')
          if len(resource_list) == 1 and resource_list[0] is None:
              return None
          else:
              try:
                  return [start_time(resource['start'])
                          for resource in resource_list]
              except (KeyError, TypeError):
                  return [start_time(resource['StartTimeUTC'])
                          for resource in resource_list]