code: def new_stats_exporter(service_name,
                         hostname=None,
                         endpoint=None,
                         interval=None):
      
      endpoint = utils.DEFAULT_ENDPOINT if endpoint is None else endpoint
      exporter = StatsExporter(
          ExportRpcHandler(_create_stub(endpoint), service_name, hostname))
  
      transport.get_exporter_thread(stats.stats, exporter, interval)
      return exporter
docs: Create a new worker thread and attach the exporter to it.
  
      :type endpoint: str
      :param endpoint: address of the opencensus service.
  
      :type service_name: str
      :param service_name: name of the service
  
      :type host_name: str
      :param host_name: name of the host (machine or host name)
  
      :type interval: int or float
      :param interval: Seconds between export calls.