old_contents: 
  from .distortion import *
  from .misc import *
  from .surface import *
  
new_contents: 
  from .distortion import Distortion
  from .misc import (
      tetra_vol,
      brick_vol,
      sort_polys,
      face_area,
      face_volume,
      decimate,
      inside_convex_poly,
      make_cube,
      boundary_edges,
      trace_poly,
      rasterize,
      voxelize,
      measure_volume,
      marching_cubes,
  )
  from .surface import Surface, _memo, _ptset, _quadset
  
subject: remove overzelous imports