export declare const USER_AGENT: string;
export interface FetchOptions extends Omit<RequestInit, "signal"> {
    /** Abort after this many ms. Default 10_000. */
    timeoutMs?: number;
    /** Additional retry attempts on transient failures (5xx, 429, network). Default 1. */
    retries?: number;
}
/**
 * fetch wrapper that adds a User-Agent, enforces a timeout, and retries
 * transient failures (5xx, 429, network errors) once by default. Returns the
 * final Response — callers still decide how to treat non-ok responses.
 */
export declare function fetchWithRetry(url: string, options?: FetchOptions): Promise<Response>;