import { BACKEND_BASE } from "../constants.js";
export type AuthCreds = {
    accessToken: string;
    accountId?: string;
    deviceId?: string;
    sessionId?: string;
};
/** Stable oai-device-id across process restarts. */
export declare function resolveDeviceId(accountId?: string): string;
export declare function browserHeaders(creds: AuthCreds): Record<string, string>;
export { BACKEND_BASE };
//# sourceMappingURL=headers.d.ts.map