export interface HttpRetryOptions {
    /** Per-request timeout (ms). Default 60s — a stalled connection rejects instead of hanging. */
    timeoutMs?: number;
    /** Retries on transient errors (429 / 5xx / timeout). Default 2. */
    maxRetries?: number;
    /** Provider name for error messages, e.g. "Anthropic". */
    label?: string;
}
export declare function postJsonWithRetry<T>(url: string, init: {
    headers: Record<string, string>;
    body: string;
}, opts?: HttpRetryOptions): Promise<T>;