code: def __get_last_experiment_version(self):
      try:
          exp_cache_file = os.sep.join(
              self.get_data_path(self.name, self.version).split(os.sep)[
                  :-1
              ]
          )
          return find_last_experiment_version(exp_cache_file)
      except Exception as e:
          return -1
  
imports: import contextlib
  import json
  import os
  import shutil
  from datetime import datetime
  import numpy
  import pandas
  from imageio import imwrite
  from tensorboard.compat.proto.event_pb2 import Event
  from tensorboard.compat.proto.event_pb2 import SessionLog
  from torch.utils.tensorboard import SummaryWriter, FileWriter
label_desc: Use image node_id 9 for calling the Experiment obj's underlying member method code with example usage: obj.__get_last_experiment_version() and returns: find_last_experiment_version, unknown