code: def test_usecols_index_col_conflict(
      all_parsers, usecols, index_col, request
  ):
      # see gh-4201: test that index_col as integer reflects usecols
      parser = all_parsers
      data = "a,b,c,d\nA,a,1,one\nB,b,2,two"
  
      if parser.engine == "pyarrow" and isinstance(usecols[0], int):
          with pytest.raises(
              ValueError, match=_msg_pyarrow_requires_names
          ):
              parser.read_csv(
                  StringIO(data), usecols=usecols, index_col=index_col
              )
          return
  
      expected = DataFrame(
          {"c": [1, 2]}, index=Index(["a", "b"], name="b")
      )
  
      result = parser.read_csv(
          StringIO(data), usecols=usecols, index_col=index_col
      )
      tm.assert_frame_equal(result, expected)
  
imports: from io import StringIO
  import numpy
  import pytest
  from pandas.errors import ParserError
  from pandas import DataFrame, Index, array
  import pandas._testing
label_desc: Use image node_id 9 for calling a global function with example usage: test_usecols_index_col_conflict(all_parsers, usecols, index_col, request) without return types