code: def test_to_csv_unicode_index_col(self):
      buf = StringIO("")
      df = DataFrame(
          [["\u05d0", "d2", "d3", "d4"], ["a1", "a2", "a3", "a4"]],
          columns=["\u05d0", "\u05d1", "\u05d2", "\u05d3"],
          index=["\u05d0", "\u05d1"],
      )
  
      df.to_csv(buf, encoding="UTF-8")
      buf.seek(0)
  
      df2 = read_csv(buf, index_col=0, encoding="UTF-8")
      tm.assert_frame_equal(df, df2)
  
imports: import csv
  from io import StringIO
  import os
  import numpy
  import pytest
  from pandas.errors import ParserError
  import pandas
  from pandas import DataFrame, Index, MultiIndex, NaT, Series, Timestamp, date_range, period_range, read_csv, to_datetime
  import pandas._testing
  import pandas.core.common
  from pandas.io.common import get_handle
label_desc: Use image node_id 34 for calling the TestDataFrameToCSV obj's underlying member method code with example usage: obj.test_to_csv_unicode_index_col() without return types