old_contents: def init_gadget(gobase):
      gobase.register_start()
      gobase.register_stop()
      gobase.register_clean()
  
      gobase.register_custom_child('publish', 'publish the image for this library',
                           f"docker build --build-arg NPM_TOKEN=${os.getenv('NPM_TOKEN')} .")
new_contents: import os
  
  def init_gadget(gobase):
      gobase.register_start()
      gobase.register_stop()
      gobase.register_clean()
  
      gobase.register_custom_child('publish', 'publish the image for this library',
                           f"docker build --build-arg NPM_TOKEN=${os.getenv('NPM_TOKEN')} .")
subject: fix imports