new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  DATASET_PATH = 'enron_dataset'
  DATASET_SUBDIRS = [
      'enron1',
      'enron2',
      'enron3',
      'enron4',
      'enron5',
      'enron6',
  ]
  
subject: Add global parameters.