code: def _GetUsernameFromProfilePath(self, path):
      
      # Strip trailing key separators.
      while path and path[-1] == '\\':
        path = path[:-1]
  
      if path:
        _, _, path = path.rpartition('\\')
      return path
docs: Retrieves the username from a Windows profile path.
  
      Trailing path path segment are ignored.
  
      Args:
        path (str): a Windows path with '\\' as path segment separator.
  
      Returns:
        str: basename which is the last path segment.