code: def get_instance(cls):
      if cls._instance is None:
          cls._instance = LocalFileSystem()
      return cls._instance
  
imports: import glob
  import os
  import shutil
  from typing import List, Dict, Union, Tuple, Iterator, BinaryIO, TextIO
  from ...utils import implements, stringify_path
  from .base import FileSystem, path_type
label_desc: Use image node_id 1 for calling the LocalFileSystem obj's underlying member method code with example usage: obj.get_instance(cls) and returns: cls