old_contents: import re
  users = {}
  
  class Users(object):
      """
      this class will handle all the functions related to the users
      """
  
  
  
  
  
  
new_contents: import re
  users = {}
  
  class Users(object):
      """
      this class will handle all the functions related to the users
      """
  
      def __init__(self, username=None, email=None, password=None):
          """constructor to initialize the global variables"""
  
  
  
  
  
  
subject: create a constructor for the global variables