old_contents: from .exposure import histogram, equalize, equalize_hist, \
                        rescale_intensity, cumulative_distribution, \
                        adjust_gamma, adjust_sigmoid, adjust_log
  
  from ._adapthist import equalize_adapthist
  
  __all__ = ['histogram',
             'equalize',
             'equalize_hist',
             'equalize_adapthist',
             'rescale_intensity',
             'cumulative_distribution',
             'adjust_gamma',
             'adjust_sigmoid',
             'adjust_log']
  
new_contents: from .exposure import histogram, equalize, equalize_hist, \
                        rescale_intensity, cumulative_distribution, \
                        adjust_gamma, adjust_sigmoid, adjust_log
  
  from ._adapthist import equalize_adapthist
  from .unwrap import unwrap
  
  __all__ = ['histogram',
             'equalize',
             'equalize_hist',
             'equalize_adapthist',
             'rescale_intensity',
             'cumulative_distribution',
             'adjust_gamma',
             'adjust_sigmoid',
             'adjust_log',
             'unwrap']
  
subject: Make unwrap visible in the exposure package.