class_docstr: Internal implementation of TimerService.
code: def __init__(self, internal_timer_service: InternalTimerServiceImpl):
      self._internal = internal_timer_service
  
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 1 to create a new TimerServiceImpl object from inherited base classes: TimerService with example: obj = TimerServiceImpl(internal_timer_service)