human
I wrote the below code

    @functools.wraps(fun)
    def decorator(self, fileids=None, **kwargs):
        if (not fileids):
            fileids = self._paths
        return fun(self, fileids, **kwargs)
    return decorator

What's a good function header?

=====
Here's a good function header?
assistant
#Here's a good function header.

def _parse_args(fun):