old_contents: def configuration(parent_package='',top_path=None):
      from numpy.distutils.misc_util import Configuration
      config = Configuration('core', parent_package, top_path)
  
      config.add_subpackage('image')
      config.add_subpackage('reference')
  
      return config
  
  if __name__ == '__main__':
      from numpy.distutils.core import setup
      setup(**configuration(top_path='').todict())
  
new_contents: def configuration(parent_package='',top_path=None):
      from numpy.distutils.misc_util import Configuration
      config = Configuration('core', parent_package, top_path)
  
      config.add_subpackage('image')
      config.add_subpackage('reference')
      config.add_subpackage('transforms')
  
      return config
  
  if __name__ == '__main__':
      from numpy.distutils.core import setup
      setup(**configuration(top_path='').todict())
  
subject: Add core.transforms package