code: def save(self, state, save_path):
      with PathManager.open(save_path, "wb") as f:
          torch.save(state, f)
  
imports: import abc
  from typing import List
  import torch
  from pytext.utils.file_io import PathManager
  from pytext.utils.usage import log_class_usage
label_desc: Use image node_id 2 for calling the CheckpointManager obj's underlying member method code with example usage: obj.save(state, save_path) without return types