old_contents: from .btrfs import BTRFS
  from .__about__ import __version__
  
  
  __all__ = [
      '__version__',
      'BTRFS'
      ]
  
new_contents: from .btrfs import BTRFS
  from .__about__ import __version__
  
  
  __all__ = [
      '__version__',
      'BTRFS'
  ]
  
subject: Fix lint