code: def GetUsernameForPath(self, path):
      
      path = path.lower()
  
      user_accounts = self._user_accounts.get(self.CURRENT_SESSION, {})
      for user_account in iter(user_accounts.values()):
        if not user_account.user_directory:
          continue
  
        user_directory = user_account.user_directory.lower()
        if path.startswith(user_directory):
          return user_account.username
  
      return None
docs: Retrieves a username for a specific path.
  
      This is determining if a specific path is within a user's directory and
      returning the username of the user if so.
  
      Args:
        path (str): path.
  
      Returns:
        str: username or None if the path does not appear to be within a user's
            directory.