import type { EndpointOverrides, NetworkClient, SsoInitResponse } from "../types";
export declare class SsoClient {
    private readonly fetcher;
    private readonly ssoUrl;
    private readonly endpoints;
    constructor(fetcher: NetworkClient, ssoUrl: string, endpoints?: EndpointOverrides);
    init(apiKey: string): Promise<SsoInitResponse>;
    refresh(jwt: string): Promise<string | null>;
}