human
Here's a good function header given the following:
I wrote the below code

    def wrapper(*args, **kw):
        return new_fn(*args, **kw)
    if old_fn.__doc__:
        wrapper.__doc__ = (old_fn.__doc__ + additional_text)
    return wrapper

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

def decorate_fn_with_doc(new_fn, old_fn, additional_text=''):