import { type RefObject } from 'react';
/** Viewport affordance only; unrelated to auto-follow tolerance or unread state. */
export declare function useScrollBottomVisibility(viewport: RefObject<HTMLElement>, content: RefObject<HTMLElement>, active: boolean, contentRevision: unknown): {
    visible: boolean;
    measure: () => void;
};
//# sourceMappingURL=use-scroll-bottom-visibility.d.ts.map