code: def __init__(
      self,
      allowed_lateness: int,
      key_selector: RowKeySelector,
      state_backend,
      state_value_coder,
      window_assigner: WindowAssigner[W],
      window_aggregator: NamespaceAggsHandleFunction[W],
      trigger: Trigger[W],
      rowtime_index: int,
      shift_timezone: str,
  ):
      super(GroupWindowAggFunction, self).__init__(
          allowed_lateness,
          key_selector,
          state_backend,
          state_value_coder,
          window_assigner,
          window_aggregator,
          trigger,
          rowtime_index,
          shift_timezone,
      )
      self._window_aggregator = window_aggregator
  
imports: import datetime
  from abc import ABC, abstractmethod
  from typing import TypeVar, Generic, List, Dict
  import pytz
  from pyflink.common import Row, RowKind
  from pyflink.common.constants import MAX_LONG_VALUE
  from pyflink.fn_execution.datastream.timerservice import InternalTimer
  from pyflink.fn_execution.datastream.process.timerservice_impl import LegacyInternalTimerServiceImpl
  from pyflink.fn_execution.coders import PickleCoder
  from pyflink.fn_execution.table.aggregate_slow import DistinctViewDescriptor, RowKeySelector
  from pyflink.fn_execution.table.state_data_view import DataViewSpec, ListViewSpec, MapViewSpec, PerWindowStateDataViewStore
  from pyflink.fn_execution.table.window_assigner import WindowAssigner, PanedWindowAssigner, MergingWindowAssigner
  from pyflink.fn_execution.table.window_context import WindowContext, TriggerContext, K, W
  from pyflink.fn_execution.table.window_process_function import GeneralWindowProcessFunction, InternalWindowProcessFunction, PanedWindowProcessFunction, MergingWindowProcessFunction
  from pyflink.fn_execution.table.window_trigger import Trigger
  from pyflink.table.udf import ImperativeAggregateFunction, FunctionContext
label_desc: Use image node_id 1 to create a new GroupWindowAggFunction object from inherited base classes: GroupWindowAggFunctionBase with example: obj = GroupWindowAggFunction(allowed_lateness, key_selector, state_backend, state_value_coder, window_assigner, window_aggregator, trigger, rowtime_index, shift_timezone)