import { MfaService } from '../types';
export declare class TotpMfaService implements MfaService {
    generateSecret(email: string): Promise<{
        secret: string;
        uri: string;
    }>;
    verifyCode(secret: string, code: string): boolean;
    generateRecoveryCodes(): string[];
}
export declare class SmsMfaService {
    private twilioClient;
    sendCode(phoneNumber: string): Promise<string>;
}
export declare class EmailMfaService {
    private transporter;
    sendCode(email: string): Promise<string>;
}
//# sourceMappingURL=mfa.d.ts.map