new_contents: # emacs: -*- mode: python-mode; py-indent-offset: 4; indent-tabs-mode: nil -*-
  # vi: set ft=python sts=4 ts=4 sw=4 et:
  
  """
  Modules for graph analysis (contains graph signal extraction and parcellation)
  
  """
  
  __all__ = []
  
subject: add __init__ in graph