import { type IChatConversationLocalItem, type Message } from "../../model.js";
/**
 * Provides the ability to scroll to the bottom for assistant chat messages.
 *
 * Some assistant responses (semantic search tree, charts) render asynchronously and keep
 * increasing the container height even after Suspense resolves. If we scroll immediately
 * when a new message arrives, we often land a few pixels above the true bottom because
 * `scrollHeight` is still growing.
 *
 * To mitigate that, we wait for `STABLE_SCROLL_TICKS` consecutive animation frames with
 * identical `scrollHeight` before performing the scroll. This preserves the smooth UX
 * while guaranteeing the viewport ends at the actual bottom once the async content settles.
 */
export declare function useMessageScroller(messages: (Message | IChatConversationLocalItem)[]): {
    scrollerRef: import("react").RefObject<HTMLDivElement | null>;
    scrollToBottom: (options?: ScrollToOptions) => void;
};
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