import { AnyChallengePayload, MfaChallengePayload, MfaSetupChallengePayload, NewPasswordChallengePayload } from './types';
export declare const isNewPasswordChallengePayload: (payload: AnyChallengePayload) => payload is NewPasswordChallengePayload;
export declare const isMfaChallengePayload: (payload: AnyChallengePayload) => payload is MfaChallengePayload;
export declare const isMfaSetupChallengePayload: (payload: AnyChallengePayload) => payload is MfaSetupChallengePayload;