declare const _default: {
    saveAccount(account: string): void;
    removeAccount(): void;
    savePublicKey(publicKey: string): void;
    removePublicKey(): void;
    saveBtcPublicKey(publicKey: string): void;
    removeBtcPublicKey(): void;
    clear(): void;
    save(account: string, publicKey: string): void;
    getAccount(): string;
    getPublicKey(): string;
    getBtcPublicKey(): string;
    isValid(): string | true;
    syncSave(account: string, publicKey: string, btcPublicKey: string): void;
};
export default _default;