import Dexie from 'dexie';
export declare class AppDB extends Dexie {
    products: any;
    customers: any;
    meta: any;
    constructor(dbName: string);
}
export declare function initDB(userId: string): AppDB;
export declare function getDB(): AppDB;
export declare function closeDB(): void;
export declare function deleteDB(userId: string): Promise<void>;