export type CallbackResult = {
    code: string;
    state: string;
};
export type CallbackServer = {
    redirectUri: string;
    waitForCode: (options?: {
        signal?: AbortSignal;
        timeoutMs?: number;
    }) => Promise<CallbackResult>;
    close: () => Promise<void>;
};
export declare function startCallbackServer(options?: {
    port?: number;
    path?: string;
}): Promise<CallbackServer>;