code: def round_trip_localpath(writer, reader, path: str | None = None):
      """
      Write an object to file specified by a py.path LocalPath and read it back.
  
      Parameters
      ----------
      writer : callable bound to pandas object
          IO writing function (e.g. DataFrame.to_csv )
      reader : callable
          IO reading function (e.g. pd.read_csv )
      path : str, default None
          The path where the object is written and then read.
  
      Returns
      -------
      pandas object
          The original object that was serialized and then re-read.
      """
      import pytest
  
      LocalPath = pytest.importorskip("py.path").local
      if path is None:
          path = "___localpath___"
      with ensure_clean(path) as path:
          writer(LocalPath(path))
          obj = reader(LocalPath(path))
      return obj
  
imports: from __future__ import annotations
  import bz2
  from functools import wraps
  import gzip
  import io
  import socket
  import tarfile
  from typing import TYPE_CHECKING, Any, Callable
  import zipfile
  from pandas._typing import FilePath, ReadPickleBuffer
  from pandas.compat import get_lzma_file
  from pandas.compat._optional import import_optional_dependency
  import pandas
  from pandas._testing._random import rands
  from pandas._testing.contexts import ensure_clean
  from pandas.io.common import urlopen
label_desc: Use image node_id 7 for calling a global function with example usage: round_trip_localpath(writer, reader, path) and returns: obj