code: def python_parser_only(request):
      """
      Fixture all of the CSV parsers using the Python engine.
      """
      return request.param()
  
imports: from __future__ import annotations
  import os
  import pytest
  from pandas.compat._optional import VERSIONS
  from pandas import read_csv, read_table
  import pandas._testing
label_desc: Use image node_id 5 for calling a global function with example usage: python_parser_only(request) and returns: request