code: def _validate_path(self, path: str) -> None:
      if not os.path.exists(os.path.join(self.root_folder, path)):
          raise FileExistsError(
              f"The provided path {path} doesn't exists"
          )
  
imports: import os
  import pathlib
  import shutil
  import sys
  from copy import deepcopy
  from time import sleep, time
  from typing import Dict, List, Optional, Union
  from lightning.app.storage.path import LocalFileSystem, _filesystem, _shared_storage_path
  from lightning.app.utilities.component import _is_flow_context
label_desc: Use image node_id 16 for calling the Drive obj's underlying member method code with example usage: obj._validate_path(path) without return types