interface Bookmark {
    id: string;
    threadId: string | null;
    messageId: string;
    text: string;
    role: 'user' | 'assistant' | 'system';
    timestamp: number;
    note?: string;
}
declare function useBookmarks(): {
    bookmarks: Bookmark[];
    add: (b: Omit<Bookmark, "id" | "timestamp">) => Promise<Bookmark>;
    remove: (id: string) => Promise<void>;
};

export { type Bookmark, useBookmarks };