code: def _get_repo_dirs(
      self,
      root_dir: Optional[str] = None,
      fs: Optional["FileSystem"] = None,
      uninitialized: bool = False,
      scm: Optional[Union["Git", "NoSCM"]] = None,
  ) -> Tuple[str, Optional[str]]:
      from dvc.fs import localfs
      from dvc.scm import SCM, SCMError
  
      dvc_dir: Optional[str] = None
      try:
          root_dir = self.find_root(root_dir, fs)
          fs = fs or localfs
          dvc_dir = fs.join(root_dir, self.DVC_DIR)
      except NotDvcRepoError:
          if not uninitialized:
              raise
  
          if not scm:
              try:
                  scm = SCM(root_dir or os.curdir)
                  if scm.dulwich.repo.bare:
                      raise NotDvcRepoError(
                          f"{scm.root_dir} is a bare git repo"
                      )
              except SCMError:
                  scm = SCM(os.curdir, no_scm=True)
  
          if not fs or not root_dir:
              root_dir = scm.root_dir
  
      assert root_dir
      return root_dir, dvc_dir
  
imports: import os
  from collections import defaultdict
  from contextlib import contextmanager
  from functools import wraps
  from typing import TYPE_CHECKING, Callable, ContextManager, Iterable, Optional, Tuple, Union
  from dvc.exceptions import DvcException, NotDvcRepoError, OutputNotFoundError, RevCollectionError
  from dvc.ignore import DvcIgnoreFilter
  from dvc.log import logger
  from dvc.utils.objects import cached_property
label_desc: Use image node_id 1 for calling the Repo obj's underlying member method code with example usage: obj._get_repo_dirs(root_dir, fs, uninitialized, scm) and returns: root_dir,  dvc_dir