human
I wrote the below code

    def inner_func(*args, **kwargs):
        response = func(*args, **kwargs)
        patch_vary_headers(response, ('Cookie',))
        return response
    return wraps(func, assigned=available_attrs(func))(inner_func)

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

def vary_on_cookie(func):