/// <reference types="react" />
/**
 * Custom hook for checking that an element has been visible in the view port at some point
 * in terms of height
 *
 * @param offset The number of pixles before the element enters the screen visible should be set to true
 */
export declare const useVisible: (offset?: number) => [boolean, import("react").RefObject<HTMLDivElement>, import("react").RefObject<HTMLDivElement>];