human
I wrote the below code

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