old_contents: from . import linsys, deflation, recycling, utils
  __all__ = ['linsys', 'deflation', 'recycling', 'utils']
  __version__ = '2.1.1'
  
new_contents: from . import linsys, deflation, recycling, utils
  __all__ = ['linsys', 'deflation', 'recycling', 'utils']
  __version__ = '2.1.2'
  
subject: bump version to 2.1.2