code: def python_engine(request):
      return request.param
  
file_path: pandas/pandas/tests/io/parser/test_unsupported.py
imports: from io import StringIO
  import os
  from pathlib import Path
  import pytest
  from pandas.errors import ParserError
  import pandas._testing
  from pandas.io.parsers import read_csv
  import pandas.io.parsers.readers
label_desc: Use image node_id 1 for calling a global function with example usage: python_engine(request) and returns: request