type Configuration = any;
export interface AuthConfig {
    issuerUrl: string;
    clientId: string;
    redirectUri?: string;
    scopes?: string[];
}
export interface AuthResult {
    accessToken: string;
    refreshToken?: string;
    idToken?: string;
    userInfo?: Record<string, unknown>;
}
/** OAuth 2.0 + PKCE via a local loopback callback. ESM-only deps load via dynamic import(). */
export declare class Authenticator {
    private readonly config;
    private clientConfig?;
    private codeVerifier?;
    constructor(config: AuthConfig);
    getClientConfig(): Configuration;
    initialize(): Promise<void>;
    authenticate(): Promise<AuthResult>;
    private handleBrowserAuth;
}
export {};
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