code: def _init_repo(self) -> Optional[Repo]:
      self._repo_initialized = True
      if Repo is None:
          return None
      if self.remote_name is None:
          return None
      try:
          return Repo(
              self._root or os.getcwd(), search_parent_directories=True
          )
      except FileNotFoundError:
          wandb.termwarn(
              "current working directory has been invalidated"
          )
          logger.warn("current working directory has been invalidated")
      except InvalidGitRepositoryError:
          logger.debug("git repository is invalid")
      except NoSuchPathError:
          wandb.termwarn(f"git root {self._root} does not exist")
          logger.warn(f"git root {self._root} does not exist")
      return None
  
imports: import configparser
  import logging
  import os
  from typing import TYPE_CHECKING, Any, Optional
  from urllib.parse import urlparse, urlunparse
  import wandb
label_desc: Use image node_id 2 for calling the GitRepo obj's underlying member method code with example usage: obj._init_repo() and returns: None, None, None, Repo