code: def statistics(self):
          
          if self._statistics is None:
              self._statistics = WorkspaceStatisticsList(self._version, workspace_sid=self._solution['sid'], )
          return self._statistics
docs: Access the statistics
  
          :returns: twilio.rest.taskrouter.v1.workspace.workspace_statistics.WorkspaceStatisticsList
          :rtype: twilio.rest.taskrouter.v1.workspace.workspace_statistics.WorkspaceStatisticsList