old_contents: import numpy as np
  
  class main:
  
      def __init__(self):
          self.corpus = None;
  
      def run(self):
          print("test")
  
  
  app = main()
  app.run()
new_contents: import numpy as np
  
  class main:
  
      def __init__(self):
          self.corpus = None;
  
      def run(self):
          print("test")
  	print("another　one")
  
  
  app = main()
  app.run()
  
subject: Test Commit