code: def pop(cls):
      return cls._writer_stacks.pop()
  
file_path: ReAgent/reagent/core/tensorboardX.py
imports: import contextlib
  import logging
  from typing import Any, Dict, List
  from torch.utils.tensorboard import SummaryWriter
label_desc: Use image node_id 7 for calling the SummaryWriterContext obj's underlying member method code with example usage: obj.pop(cls) and returns: cls