export type DeviceCodeResponse = {
    device_code: string;
    user_code: string;
    verification_uri: string;
    verification_uri_complete?: string;
    interval: number;
    expires_in: number;
};
export type DeviceTokenErrorBody = {
    error?: string;
    error_description?: string;
};
export declare function requestDeviceCode(baseUrl: string, clientId: string): Promise<DeviceCodeResponse>;
/**
 * Polls `/api/auth/device/token` until success or terminal error.
 * First attempt is immediate; subsequent attempts wait `interval` seconds (increased on `slow_down`).
 */
export declare function pollDeviceAccessToken(baseUrl: string, clientId: string, deviceCode: string, initialIntervalSec: number, options?: {
    maxWaitMs?: number;
    log?: (msg: string) => void;
}): Promise<string>;