code: def feature_ranking(score):
      """
      Rank features in descending order according to reliefF score, the higher the reliefF score, the more important the
      feature is
      """
      idx = np.argsort(score, 0)
      return idx[::-1]
  
label_desc: Use image node_id 2 for calling a global function with example usage: feature_ranking(score) and returns: idx