code: def save_dir(self) -> str:
      repo_path = (
          clean_repo_path(self._repo_path) or Repo.default_repo_path()
      )
      return os.path.join(repo_path, get_aim_repo_name())
  
file_path: aim/aim/sdk/adapters/pytorch_lightning.py
imports: import os
  from typing import Any, Dict, Optional, Union
  from argparse import Namespace
  import packaging.version
  from aim.sdk.run import Run
  from aim.sdk.repo import Repo
  from aim.sdk.utils import clean_repo_path, get_aim_repo_name
  from aim.ext.resource.configs import DEFAULT_SYSTEM_TRACKING_INT
label_desc: Use image node_id 8 for calling the AimLogger obj's underlying member method code with example usage: obj.save_dir() and returns: os