import { Strategy } from 'passport-jwt';
import { DecodedIdToken } from './decoded-id-token';
import { FirebaseAuthConfig } from './firebase-auth.config';
declare const FirebaseStrategy_base: new (...args: any[]) => Strategy;
export declare class FirebaseStrategy extends FirebaseStrategy_base {
    constructor({ issuer, audience }: FirebaseAuthConfig);
    validate(payload: DecodedIdToken): any | Promise<any>;
}
export {};