code: def activities(self):
          
          if self._activities is None:
              self._activities = ActivityList(self._version, workspace_sid=self._solution['sid'], )
          return self._activities
docs: Access the activities
  
          :returns: twilio.rest.taskrouter.v1.workspace.activity.ActivityList
          :rtype: twilio.rest.taskrouter.v1.workspace.activity.ActivityList