code: def test_where_doesnt_retain_freq(self):
      tdi = timedelta_range("1 day", periods=3, freq="D", name="idx")
      cond = [True, True, False]
      expected = TimedeltaIndex(
          [tdi[0], tdi[1], tdi[0]], freq=None, name="idx"
      )
  
      result = tdi.where(cond, tdi[::-1])
      tm.assert_index_equal(result, expected)
  
imports: from datetime import datetime
  import re
  import numpy
  import pytest
  from pandas import Index, NaT, Timedelta, TimedeltaIndex, Timestamp, notna, offsets, timedelta_range, to_timedelta
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestWhere obj's underlying member method code with example usage: obj.test_where_doesnt_retain_freq() without return types