code: def _isfilestore(self) -> bool:
      raise NotImplementedError
  
imports: from typing import List, Iterator, Tuple, Union, BinaryIO, TextIO, Dict
  from fsspec import filesystem
  from fsspec.core import stringify_path
  from ...utils import implements
  from .core import FileSystem
  from .core import path_type
label_desc: Use image node_id 11 for calling the FsSpecAdapter obj's underlying member method code with example usage: obj._isfilestore() without return types