export declare function useWheelScroll({ ref, onScrollX, onScrollY, }: {
    ref: React.RefObject<HTMLDivElement | null>;
    onScrollX?: (delta: number) => void;
    onScrollY?: (delta: number) => void;
}): {
    onMouseDown: (event: React.MouseEvent) => void;
    onMouseUp: (event: React.MouseEvent) => void;
};