old_contents: from .base import DetectorMixin
  from . import change_detection
  from . import outlier_detection
  
  __version__ = '0.3.0'
  
new_contents: from .base import DetectorMixin
  from . import change_detection
  from . import outlier_detection
  
  __version__ = '0.3.1'
  
subject: update __version__