text: from .groie import SumGenericRoiExtractor
  from .single_level import SingleRoIExtractor
  from .soft_roi_selection import SoftRoIExtractor
  from .all_level_auxiliary import AuxAllLevelRoIExtractor
  
  __all__ = [
      'SingleRoIExtractor',
      'SumGenericRoiExtractor',
      'SoftRoIExtractor',
      'AuxAllLevelRoIExtractor'
  ]
  