old_contents: from .hdbscan_ import HDBSCAN, hdbscan
  from .robust_single_linkage_ import RobustSingleLinkage, robust_single_linkage
  
new_contents: from .hdbscan_ import HDBSCAN, hdbscan
  from .robust_single_linkage_ import RobustSingleLinkage, robust_single_linkage
  from .prediction import approximate_predict, membership_vector, all_points_membership_vectors
  
subject: Add prediction functions to imports in init