code: def _proxy(self):
          
          if self._context is None:
              self._context = TaskStatisticsContext(
                  self._version,
                  assistant_sid=self._solution['assistant_sid'],
                  task_sid=self._solution['task_sid'],
              )
          return self._context
docs: Generate an instance context for the instance, the context is capable of
          performing various actions.  All instance actions are proxied to the context
  
          :returns: TaskStatisticsContext for this TaskStatisticsInstance
          :rtype: twilio.rest.autopilot.v1.assistant.task.task_statistics.TaskStatisticsContext