code: def test_repr_unicode_level_names(self, frame_or_series):
      index = MultiIndex.from_tuples(
          [(0, 0), (1, 1)], names=["\u0394", "i1"]
      )
  
      obj = DataFrame(
          np.random.default_rng(2).standard_normal((2, 4)), index=index
      )
      obj = tm.get_obj(obj, frame_or_series)
      repr(obj)
  
imports: from datetime import datetime, timedelta
  from io import StringIO
  import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  from pandas import NA, Categorical, CategoricalIndex, DataFrame, IntervalIndex, MultiIndex, NaT, PeriodIndex, Series, Timestamp, date_range, option_context, period_range
  import pandas._testing
label_desc: Use image node_id 3 for calling the TestDataFrameRepr obj's underlying member method code with example usage: obj.test_repr_unicode_level_names(frame_or_series) without return types