old_contents: from __future__ import absolute_import
  import math, utilities.operator
  from ...weight import WeightDict, normalize_exp
  from .L1 import phase_description
  
  
  # Normalised distances and L2-normalised (Euclidean norm) collector sets
  collector_weights = \
    WeightDict(normalize_exp, (utilities.operator.square, math.sqrt),
      tags=('normalized'))
  
new_contents: from __future__ import absolute_import
  import math, utilities.operator
  from ...weight import WeightDict, normalize_exp
  from .L1 import descriptions
  
  
  # Normalised distances and L2-normalised (Euclidean norm) collector sets
  weights = \
    WeightDict(normalize_exp, (utilities.operator.square, math.sqrt),
      tags=('normalized'))
  
subject: Update secondary collector description module