code: def current_processing_time(self):
      return self._j_timer_service.currentProcessingTime()
  
imports: from pyflink.datastream import TimerService
  from pyflink.fn_execution.datastream.timerservice import InternalTimerService, N
label_desc: Use image node_id 2 for calling the InternalTimerServiceImpl obj's underlying member method code with example usage: obj.current_processing_time() and returns: self