old_contents: import os
  
  from bonobo import Graph
  
  
  def extract():
      env_test_user = os.getenv('ENV_TEST_USER')
      env_test_number = os.getenv('ENV_TEST_NUMBER')
      env_test_string = os.getenv('ENV_TEST_STRING')
      return env_test_user, env_test_number, env_test_string
  
  
  def load(s: str):
      print(s)
  
  
  graph = Graph(extract, load)
  
  if __name__ == '__main__':
      from bonobo import run
  
      run(graph)
  
new_contents: import os
  
  import bonobo
  
  
  def extract():
      env_test_user = os.getenv('ENV_TEST_USER')
      env_test_number = os.getenv('ENV_TEST_NUMBER')
      env_test_string = os.getenv('ENV_TEST_STRING')
      return env_test_user, env_test_number, env_test_string
  
  
  def load(s: str):
      print(s)
  
  
  graph = bonobo.Graph(extract, load)
  
  if __name__ == '__main__':
      bonobo.run(graph)
  
subject: Change import style in example.