code: def fetch(self, minutes=values.unset, start_date=values.unset,
                end_date=values.unset, task_channel=values.unset):
          
          return self._proxy.fetch(
              minutes=minutes,
              start_date=start_date,
              end_date=end_date,
              task_channel=task_channel,
          )
docs: Fetch a WorkerStatisticsInstance
  
          :param unicode minutes: Filter cumulative statistics by up to 'x' minutes in the past.
          :param datetime start_date: Filter cumulative statistics by a start date.
          :param datetime end_date: Filter cumulative statistics by a end date.
          :param unicode task_channel: Filter cumulative statistics by TaskChannel.
  
          :returns: Fetched WorkerStatisticsInstance
          :rtype: twilio.rest.taskrouter.v1.workspace.worker.worker_statistics.WorkerStatisticsInstance