import { Logger } from '../..';
import { Oauth2Service, TokenInfo } from './types/oauth2.type';
export declare class DefaultOauth2Service implements Oauth2Service {
    private logger;
    constructor(opts: {
        logger: Logger;
    });
    introspectToken(opts: {
        url: string;
        clientId: string;
        clientSecret: string;
        token: string;
    }): Promise<TokenInfo>;
}