import React from 'react';
interface UseIsOutsideViewportProps<Element = HTMLElement> {
    (ref: React.RefObject<Element>): {
        bottom: boolean;
        left: boolean;
        right: boolean;
        top: boolean;
    };
}
declare const useIsOutsideViewport: UseIsOutsideViewportProps;
export { useIsOutsideViewport };
