new_contents: # -*- coding: utf-8 -*-
  """representation.py
  
  Compute the representation of the different populations in the areal units
  provided as an input.
  
  See [Louf:2015]_ for the definition of the different quantities
  """
  
  __all__ = ['representation']
  
  
  #
  # Helper functions
  #
  
  
  
  #
  # Callable functions
  #
  def representation(distribution, classes=None):
      representation = 
  
  
subject: Write the header for the representation functions.