declare function _default({ scrollPosition, offset, callbacks: { scrollDown, scrollUp }, }: {
    scrollPosition?: number | undefined;
    offset?: {
        down: number;
        up: number;
    } | undefined;
    callbacks: {
        scrollDown?: (() => void) | undefined;
        scrollUp?: (() => void) | undefined;
    };
}): {
    current: number;
    past: number;
} | undefined;
export default _default;
