import { AppService, AppFileSystemService, KeystoreService as CoreKeystoreService, KeystoreProvider } from "@wocker/core";
export declare class KeystoreService extends CoreKeystoreService {
    protected readonly appService: AppService;
    protected readonly fs: AppFileSystemService;
    protected providers: Map<string, KeystoreProvider>;
    constructor(appService: AppService, fs: AppFileSystemService);
    hasProvider(name: string): boolean;
    provider(name?: string): KeystoreProvider;
    get(keys: string | string[], byDefault?: string): Promise<string | undefined>;
    set(key: string, value: string): Promise<void>;
    delete(key: string): Promise<void>;
    registerProvider(name: string, provider: KeystoreProvider): void;
}