code: def du(*components, **kwargs):
      
      human_readable = kwargs.get("human_readable", True)
  
      _path = path(*components)
      if not exists(_path):
          raise Error("file '{}' not found".format(_path))
      size = os.stat(_path).st_size
      if human_readable:
          return naturalsize(size)
      else:
          return size
docs: Get the size of a file in bytes or as a human-readable string.
  
      Arguments:
  
          *components (str[]): Path to file.
          **kwargs: If "human_readable" is True, return a formatted string,
            e.g. "976.6 KiB" (default True)
  
      Returns:
          int or str: If "human_readble" kwarg is True, return str, else int.