class_docstr: Internal implementation of InternalTimerService.
code: def add_timer_info(self, timer_info):
      self._timer_coder_impl = timer_info.timer_coder_impl
      self._output_stream = timer_info.output_stream
  
imports: import collections
  import time
  from enum import Enum
  from io import BytesIO
  from pyflink.common import Row
  from pyflink.datastream import TimerService
  from pyflink.fn_execution.datastream.timerservice import InternalTimer, K, N, InternalTimerService
label_desc: Use image node_id 2 for calling the InternalTimerServiceImpl obj's underlying member method code with example usage: obj.add_timer_info(timer_info) without return types