code: def test_no_flex(self, pairwise_frames, pairwise_target_frame, f):
      # DataFrame methods (which do not call flex_binary_moment())
  
      result = f(pairwise_frames)
      tm.assert_index_equal(result.index, pairwise_frames.columns)
      tm.assert_index_equal(result.columns, pairwise_frames.columns)
      expected = f(pairwise_target_frame)
      # since we have sorted the results
      # we can only compare non-nans
      result = result.dropna().values
      expected = expected.dropna().values
  
      tm.assert_numpy_array_equal(result, expected, check_dtype=False)
  
imports: import numpy
  import pytest
  from pandas.compat import IS64
  from pandas import DataFrame, Index, MultiIndex, Series, date_range
  import pandas._testing
  from pandas.core.algorithms import safe_sort
label_desc: Use image node_id 1 for calling the TestPairwise obj's underlying member method code with example usage: obj.test_no_flex(pairwise_frames, pairwise_target_frame, f) without return types