interface TurnWorkState {
    expandedMessageIds: ReadonlySet<string>;
    toggleExpanded: (messageId: string) => void;
    clearExpanded: () => void;
}
/**
 * Which older turns have their tool work expanded. The latest turn is never
 * collapsed, so it is not tracked here.
 */
export declare const useTurnWorkStore: import("zustand").UseBoundStore<import("zustand").StoreApi<TurnWorkState>>;
export {};
//# sourceMappingURL=turnWorkStore.d.ts.map