class_docstr: A WindowAssigner that window can be split into panes.
class_docstr_tok: ["A","WindowAssigner","that","window","can","be","split","into","panes","."]
code: def get_last_window(self, pane: W) -> W:
      pass
  
imports: import math
  from abc import ABC, abstractmethod
  from typing import Generic, List, Any, Iterable, Set
  from pyflink.common.typeinfo import Types
  from pyflink.datastream.state import ValueStateDescriptor, ValueState
  from pyflink.datastream.window import TimeWindow, CountWindow
  from pyflink.fn_execution.table.window_context import Context, W
label_desc: Use image node_id 3 for calling the PanedWindowAssigner obj's underlying member method code with example usage: obj.get_last_window(pane) without return types