old_contents: #! /usr/bin/python3
  import util_test
  
  
  def test_scenario(scenario_name, transactions):
      new_dump, new_log = util_test.run_scenario(transactions)
      old_dump, old_log = util_test.load_scenario_ouput(scenario_name)
      util_test.compare_strings(new_dump, old_dump)
      util_test.compare_strings(new_log, old_log)
  
new_contents: #! /usr/bin/python3
  import util_test
  
  def test_scenario(scenario_name, transactions):
      new_dump, new_log = util_test.run_scenario(transactions)
      old_dump, old_log = util_test.load_scenario_ouput(scenario_name)
      util_test.compare_strings(new_dump, old_dump)
      util_test.compare_strings(new_log, old_log)
  
subject: remove unused function