code: def test_default(self):
      res_df = fpmax(self.df)
      expect = pd.DataFrame(
          [
              [0.6, frozenset([5, 6])],
              [0.6, frozenset([5, 10])],
              [0.6, frozenset([3, 5, 8])],
          ],
          columns=["support", "itemsets"],
      )
  
      compare_dataframes(res_df, expect)
  
imports: import unittest
  import numpy
  import pandas
  from test_fpbase import FPTestEdgeCases, FPTestErrors, FPTestEx1, FPTestEx2, FPTestEx3All, compare_dataframes
  from mlxtend.frequent_patterns import fpmax
label_desc: Use image node_id 2 for calling the TestEx1 obj's underlying member method code with example usage: obj.test_default() without return types