code: def test_equals_subclass(self):
      # https://github.com/pandas-dev/pandas/pull/34402
      # allow subclass in both directions
      df1 = DataFrame({"a": [1, 2, 3]})
      df2 = tm.SubclassedDataFrame({"a": [1, 2, 3]})
      assert df1.equals(df2)
      assert df2.equals(df1)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, MultiIndex, Series
  import pandas._testing
label_desc: Use image node_id 32 for calling the TestDataFrameSubclassing obj's underlying member method code with example usage: obj.test_equals_subclass() without return types