import { AppDb } from "./sqlite.connection";
/**
 * Retrieves the application state associated with the specified key from the database.
 *
 * @param db - The application database instance.
 * @param key - The key identifying the state to retrieve.
 * @returns A promise that resolves to the requested state data or undefined if not found.
 */
export declare const dbNeedAppState: (db: AppDb, key: string) => Promise<{
    key: any;
    state: any;
    expiresAt: number;
} | null>;