docstr: Utility method that allows to modify the state dict before loading parameters into a model.
  Args:
      conf: A model level OmegaConf object.
      state_dict: The state dict restored from the checkpoint.
  Returns:
      A potentially modified state dict.
code: def modify_state_dict(self, conf, state_dict):
      """
      Utility method that allows to modify the state dict before loading parameters into a model.
      Args:
          conf: A model level OmegaConf object.
          state_dict: The state dict restored from the checkpoint.
      Returns:
          A potentially modified state dict.
      """
  
      # NOTE and TODO (sandeepsub) This is duplicated across save_restore_connector and nlp_save_restore_connector. This shouldn't be here.
      if conf.get("megatron_amp_O2", False):
          new_state_dict = {}
          for key in state_dict.keys():
              new_key = key.replace("model.", "model.module.", 1)
              new_state_dict[new_key] = state_dict[key]
          state_dict = new_state_dict
      return state_dict
  
imports: from __future__ import annotations
  import os
  import shutil
  import tarfile
  import tempfile
  import uuid
  from typing import Optional, Set, Union
  import torch
  from omegaconf import DictConfig, OmegaConf
  from omegaconf.omegaconf import open_dict
  from pytorch_lightning.trainer.trainer import Trainer
  from nemo.core import classes
  from nemo.utils import logging, model_utils
  from nemo.utils.app_state import AppState
  from nemo.utils.get_rank import is_global_rank_zero
  from nemo.utils.model_utils import inject_model_parallel_rank
label_desc: Use image node_id 4 for calling the SaveRestoreConnector obj's underlying member method code with example usage: obj.modify_state_dict(conf, state_dict) and returns: state_dict