/// <reference types="passport-apple" />
import { Context, Provider } from '@loopback/core';
import { Strategy } from 'passport';
import * as AzureADAuthStrategy from 'passport-azure-ad';
import * as FacebookStrategy from 'passport-facebook';
import * as GoogleStrategy from 'passport-google-oauth20';
import * as PassportBearer from 'passport-http-bearer';
import * as InstagramStrategy from 'passport-instagram';
import * as PassportLocal from 'passport-local';
import * as Auth0Strategy from 'passport-auth0';
import { AuthenticationMetadata, IAuthUser } from '../types';
import { LocalPasswordStrategyFactory } from './passport/passport-local';
import { Otp } from './passport/passport-otp';
import { Oauth2ResourceOwnerPassword } from './passport/passport-resource-owner-password';
import { VerifyFunction } from './types';
export type VerifierType = LocalPasswordStrategyFactory | VerifyFunction.LocalPasswordFn<IAuthUser> | undefined;
export declare class AuthStrategyProvider implements Provider<Strategy | undefined> {
    private readonly metadata;
    private readonly ctx;
    constructor(metadata: AuthenticationMetadata, ctx: Context);
    processLocalFactory(verifier: VerifierType): Promise<PassportLocal.Strategy>;
    processBearerFactory(verifier: VerifierType): Promise<PassportBearer.Strategy<VerifyFunction.BearerFn<IAuthUser>>>;
    processResourceOwnerFactory(verifier: VerifierType): Promise<Oauth2ResourceOwnerPassword.Strategy>;
    processGoogleFactory(verifier: VerifierType): Promise<GoogleStrategy.Strategy>;
    processAzureFactory(verifier: VerifierType): Promise<AzureADAuthStrategy.OIDCStrategy>;
    processKeycloakFactory(verifier: VerifierType): Promise<any>;
    processInstagramFactory(verifier: VerifierType): Promise<InstagramStrategy.Strategy>;
    processAppleFactory(verifier: VerifierType): Promise<import("passport-apple")>;
    processFacebookFactory(verifier: VerifierType): Promise<FacebookStrategy.Strategy>;
    processCognitoFactory(verifier: VerifierType): any;
    processOtpAuthFactory(verifier: VerifierType): Promise<Otp.Strategy>;
    processAuth0Factory(verifier: VerifierType): Promise<Auth0Strategy.Strategy>;
    processSamlFactory(verifier: VerifierType): Promise<import("@node-saml/passport-saml").Strategy>;
    value(): Promise<Strategy | undefined>;
}