import { AuthConfig } from './Authentication';
import { AwsCredentialIdentity } from '@aws-sdk/types';
import { Authentication } from './Authentication';
export declare class EnhancedAuthentication extends Authentication {
    constructor(config: AuthConfig, applicationId: string);
    /**
     * Provides credentials for an anonymous (guest) user. These credentials are retrieved from Cognito's enhanced
     * authflow.
     *
     * See https://docs.aws.amazon.com/cognito/latest/developerguide/authentication-flow.html
     *
     * Implements AwsCredentialIdentityProvider = Provider<AwsCredentialIdentity>
     */
    protected AnonymousCognitoCredentialsProvider: () => Promise<AwsCredentialIdentity>;
}