code: def test_closed_deprecated(self):
      # GH#52628
      msg = "The 'closed' keyword"
      with tm.assert_produces_warning(FutureWarning, match=msg):
          TimedeltaIndex([], closed=True)
  
imports: from datetime import timedelta
  import numpy
  import pytest
  import pandas
  from pandas import Timedelta, TimedeltaIndex, timedelta_range, to_timedelta
  import pandas._testing
  from pandas.core.arrays.timedeltas import TimedeltaArray
label_desc: Use image node_id 1 for calling the TestTimedeltaIndex obj's underlying member method code with example usage: obj.test_closed_deprecated() without return types