class_docstr: Helper class for reading from and writing to the checkpoint state file
class_docstr_tok: ["Helper","class","for","reading","from","and","writing","to","the","checkpoint","state","file"]
docstr: :return: True if checkpoint state file exists, false otherwise
docstr_tok: [":","return",":","True","if","checkpoint","state","file","exists",",","false","otherwise"]
code: def exists(self) -> bool:
      """
      :return: True if checkpoint state file exists, false otherwise
      """
      return os.path.exists(self._checkpoint_state_path)
  
imports: import os
  import re
  from typing import List, Union, Tuple
label_desc: Use image node_id 2 for calling the CheckpointStateFile obj's underlying member method code with example usage: obj.exists() and returns: os