code: def test_delete_slice(self):
      idx = timedelta_range(
          start="1 days", periods=10, freq="D", name="idx"
      )
  
      # preserve freq
      expected_0_2 = timedelta_range(
          start="4 days", periods=7, freq="D", name="idx"
      )
      expected_7_9 = timedelta_range(
          start="1 days", periods=7, freq="D", name="idx"
      )
  
      # reset freq to None
      expected_3_5 = TimedeltaIndex(
          ["1 d", "2 d", "3 d", "7 d", "8 d", "9 d", "10d"],
          freq=None,
          name="idx",
      )
  
      cases = {
          (0, 1, 2): expected_0_2,
          (7, 8, 9): expected_7_9,
          (3, 4, 5): expected_3_5,
      }
      for n, expected in cases.items():
          result = idx.delete(n)
          tm.assert_index_equal(result, expected)
          assert result.name == expected.name
          assert result.freq == expected.freq
  
          result = idx.delete(slice(n[0], n[-1] + 1))
          tm.assert_index_equal(result, expected)
          assert result.name == expected.name
          assert result.freq == expected.freq
  
imports: from pandas import TimedeltaIndex, timedelta_range
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestTimedeltaIndexDelete obj's underlying member method code with example usage: obj.test_delete_slice() without return types