code: def test_get_level_values_when_periods():
      # GH33131. See also discussion in GH32669.
      # This test can probably be removed when PeriodIndex._engine is removed.
      from pandas import (
          Period,
          PeriodIndex,
      )
  
      idx = MultiIndex.from_arrays(
          [PeriodIndex([Period("2019Q1"), Period("2019Q2")], name="b")]
      )
      idx2 = MultiIndex.from_arrays(
          [idx._get_level_values(level) for level in range(idx.nlevels)]
      )
      assert all(x.is_monotonic_increasing for x in idx2.levels)
  
file_path: pandas/pandas/tests/indexes/multi/test_get_level_values.py
imports: import numpy
  import pandas
  from pandas import CategoricalIndex, Index, MultiIndex, Timestamp, date_range
  import pandas._testing
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_level_values_when_periods() without return types