old_contents: 
  from core import wrap
  
  import bamboo.groups
  import bamboo.frames
  import bamboo.plotting
  
  
  __all__ = ['core', 'plotting', 'frames', 'groups', 'modeling']
  
new_contents: 
  from core import *
  
  __all__ = ['core', 'frames', 'groups', 'modeling']
  
subject: Update init