code: def test_reset_index_datetime3(self, tz_naive_fixture):
      # GH#7793
      tz = tz_naive_fixture
      dti = date_range("20130101", periods=3, tz=tz)
      idx = MultiIndex.from_product([["a", "b"], dti])
      df = DataFrame(
          np.arange(6, dtype="int64").reshape(6, 1),
          columns=["a"],
          index=idx,
      )
  
      expected = DataFrame(
          {
              "level_0": "a a a b b b".split(),
              "level_1": dti.append(dti),
              "a": np.arange(6, dtype="int64"),
          },
          columns=["level_0", "level_1", "a"],
      )
      result = df.reset_index()
      tm.assert_frame_equal(result, expected)
  
imports: from datetime import datetime
  from itertools import product
  import numpy
  import pytest
  from pandas.core.dtypes.common import is_float_dtype, is_integer_dtype
  import pandas
  from pandas import Categorical, CategoricalIndex, DataFrame, Index, Interval, IntervalIndex, MultiIndex, RangeIndex, Series, Timestamp, cut, date_range
  import pandas._testing
label_desc: Use image node_id 22 for calling the TestResetIndex obj's underlying member method code with example usage: obj.test_reset_index_datetime3(tz_naive_fixture) without return types