code: def batch_size(self):
      # TODO: fix multi-gpu
      return self.batch_size_per_gpu
  
file_path: lm-evaluation-harness/lm_eval/models/gpt2.py
imports: import torch
  import transformers
  from typing import Optional, Union
  from lm_eval.base import BaseLM
label_desc: Use image node_id 5 for calling the HFLM obj's underlying member method code with example usage: obj.batch_size() and returns: self