code: def get_ckpt_path(epoch: Union[int, str]) -> str:
      return osp.join(get_ckpt_dir(), f"{epoch}.ckpt")
  
file_path: pytorch_geometric/torch_geometric/graphgym/checkpoint.py
imports: import glob
  import os
  import os.path
  from typing import Any, Dict, List, Optional, Union
  import torch
  from torch_geometric.graphgym.config import cfg
label_desc: Use image node_id 6 for calling a global function with example usage: get_ckpt_path(epoch) and returns: osp