Docstring for a function whose signature was changed by a decorator

I have a reduce_with decorator like this:

def reduce_with(init):
    def reduce_with_(f_):
        @wraps(f_)
        def wrapper(xs):
            return reduce(f_, xs, init)

        return wrapper

    return reduce_with_

and I have defined an add function like this:

@reduce_with(0)
def add(x, y):
    """ Get the sum of a list of numbers.
    :param xs: a list of numbers
    :return: the sum
    """
    return x + y

Now PyCharm complains about missing parameters x, y and unexpected parameter xs in docstring.If I change the docstring to the way PyCharm wants it that would be misleading. How can I get rid of this message?