old_contents: """
  
  Defines the data model for the backend.
  
  """
  
  def get_user(user_handle, is_id = True):
      """
      Retrieve user object by handle
      """
      pass
  
  def add_user(user_handle, pass_hash):
      """
      1. Create ID
      2. Store in DB
      """
      pass
new_contents: """ Defines the data model for the backend. """
  
  
  def get_user(user_handle, is_id = True):
      """
      Retrieve user object by handle
      """
      pass
  
  
  def add_user(user_handle, pass_hash):
      """
      1. Create ID
      2. Store in DB
      """
      pass
  
subject: fix - pep8