import { CoolinkRetCode, CoolinkRetValue } from './type';
declare class StorageModule {
    private static instance;
    static getModule(): StorageModule;
    setKey(key: string, value: string): Promise<CoolinkRetCode>;
    getKey(key: string): Promise<CoolinkRetValue>;
    deleteKey(key: string): Promise<CoolinkRetCode>;
    clearAllKeys(): Promise<CoolinkRetCode>;
}
export default StorageModule;