docstr: Returns a dict with git fields of the current repository
  
  To reproduce an experiment directly from a checkpoint
  
  1) Export `config` key as a yaml
  2) Clone repository and checkout at given commit on given branch
  3) Any local change (diff) while running the experiment is stored
     in the value with key `git/diff`, output the diff to a `path.diff`
     file and apply the patch to the current state by simply
  
                  `patch -p0 < path.diff`
code: def _get_vcs_fields(self):
      """Returns a dict with git fields of the current repository
  
      To reproduce an experiment directly from a checkpoint
  
      1) Export `config` key as a yaml
      2) Clone repository and checkout at given commit on given branch
      3) Any local change (diff) while running the experiment is stored
         in the value with key `git/diff`, output the diff to a `path.diff`
         file and apply the patch to the current state by simply
  
                      `patch -p0 < path.diff`
      """
  
      return {
          "git/branch": self.git_repo.active_branch.name,
          "git/commit_hash": self.git_repo.head.commit.name_rev,
          "git/commit_author": self.git_repo.head.commit.author.name,
          "git/commit_message": self.git_repo.head.commit.message,
          "git/diff": self.git_repo.git.diff("--no-prefix"),
      }
  
imports: import glob
  import importlib
  import logging
  import os
  import sys
  import warnings
  from typing import Any, Dict
  import torch
  from mmf.common.registry import registry
  from mmf.utils.checkpoint_updater import get_pretrained_state_mapping_checkpoint
  from mmf.utils.configuration import get_mmf_env, load_yaml
  from mmf.utils.distributed import is_main, is_xla, open_if_main, synchronize
  from mmf.utils.download import download_pretrained_model
  from mmf.utils.file_io import PathManager
  from mmf.utils.general import get_current_device, updir
  from mmf.utils.xla import save_xla_ckpt
  from omegaconf import OmegaConf
label_desc: Use image node_id 13 for calling the Checkpoint obj's underlying member method code with example usage: obj._get_vcs_fields() and returns: dict