code: def test_asfreq_after_normalize(self, unit):
      # https://github.com/pandas-dev/pandas/issues/50727
      result = DatetimeIndex(
          date_range("2000", periods=2).as_unit(unit).normalize(),
          freq="D",
      )
      expected = DatetimeIndex(
          ["2000-01-01", "2000-01-02"], freq="D"
      ).as_unit(unit)
      tm.assert_index_equal(result, expected)
  
imports: from datetime import datetime
  import numpy
  import pytest
  from pandas._libs.tslibs.offsets import MonthEnd
  from pandas import DataFrame, DatetimeIndex, Series, date_range, period_range, to_datetime
  import pandas._testing
  from pandas.tseries import offsets
label_desc: Use image node_id 14 for calling the TestAsFreq obj's underlying member method code with example usage: obj.test_asfreq_after_normalize(unit) without return types