code: def from_fs(cls: t.Type[T], item_fs: FS) -> T:
      raise NotImplementedError
  
imports: from __future__ import annotations
  import logging
  import os
  import re
  import typing
  import urllib.parse
  from abc import ABC
  from abc import abstractmethod
  import fs
  import fs.copy
  import fs.errors
  import fs.mirror
  import fs.opener
  import fs.opener.errors
  import fs.tempfs
  from fs import open_fs
  from fs.base import FS
label_desc: Use image node_id 4 for calling the Exportable obj's underlying member method code with example usage: obj.from_fs(cls, item_fs) without return types