code: def test_to_csv_from_csv4(self):
      with tm.ensure_clean("__tmp_to_csv_from_csv4__") as path:
          # GH 10833 (TimedeltaIndex formatting)
          dt = pd.Timedelta(seconds=1)
          df = DataFrame(
              {"dt_data": [i * dt for i in range(3)]},
              index=Index([i * dt for i in range(3)], name="dt_index"),
          )
          df.to_csv(path)
  
          result = read_csv(path, index_col="dt_index")
          result.index = pd.to_timedelta(result.index)
          result["dt_data"] = pd.to_timedelta(result["dt_data"])
  
          tm.assert_frame_equal(df, result, check_index_type=True)
  
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 5 for calling the TestDataFrameToCSV obj's underlying member method code with example usage: obj.test_to_csv_from_csv4() without return types