code: def get_initial_step(self):
      if not self.restart_global_step:
          return self.fallback.get("global_step:0", 0)
      return 0
  
imports: import os
  from concurrent.futures import ThreadPoolExecutor
  import logging
  import sys
  import re
  import joblib
  import numpy
  import tensorflow
  from tensorflow.compat.v1.train import SessionRunHook
  from tensorflow_estimator.python.estimator.early_stopping import _StopOnPredicateHook
  from finetune.errors import FinetuneError
  from finetune.config import get_config
  from finetune.util.metrics import read_eval_metrics
label_desc: Use image node_id 5 for calling the Saver obj's underlying member method code with example usage: obj.get_initial_step() and returns: int, self