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from pandas import timedelta_range
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import pandas._testing as tm
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class TestPickle:
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def test_pickle_after_set_freq(self):
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tdi = timedelta_range("1 day", periods=4, freq="s")
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tdi = tdi._with_freq(None)
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res = tm.round_trip_pickle(tdi)
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tm.assert_index_equal(res, tdi)
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