export interface StickToBottomMetrics {
    scrollTop: number;
    scrollHeight: number;
    clientHeight: number;
}
/** Pure: is the scroll position within `threshold` px of the bottom? */
export declare function isNearBottom(metrics: StickToBottomMetrics, threshold: number): boolean;
export interface UseStickToBottomOptions {
    /** Px distance from the bottom under which the view is considered pinned. */
    threshold?: number;
}
export interface UseStickToBottomReturn<T extends HTMLElement = HTMLElement> {
    /** Attach to the `<ScrollArea>` root (or any element). */
    scrollRef: (node: T | null) => void;
    /** Whether the view is currently pinned near the bottom. */
    isPinned: boolean;
    /** Force-scroll to the bottom and re-pin. */
    scrollToBottom: () => void;
}
export declare function useStickToBottom<T extends HTMLElement = HTMLElement>(options?: UseStickToBottomOptions): UseStickToBottomReturn<T>;