old_contents: import unittest
  
  from app.modules.sample_module import SampleModule
  
  
  class TestSampleModule(unittest.TestCase):
      def test_sample_module(self):
          obj = SampleModule()
          actual = obj.sample('test') 
          self.assertTrue('test test', actual)
  
new_contents: import unittest
  
  from app.modules.sample_module import SampleModule
  
  
  class TestSampleModule(unittest.TestCase):
      def test_sample_module(self):
          obj = SampleModule()
          actual = obj.sample('test')
          self.assertTrue('test test', actual)
  
subject: Revert "try"