import type { MisinaResolvedOptions, ResolvedRetry } from "./types.mjs";
export declare function resolveRetry(input: number | boolean | Partial<ResolvedRetry> | undefined, fallback?: ResolvedRetry): ResolvedRetry;
/**
* Compute delay for the next retry. Honors `Retry-After` and
* `RateLimit-Reset` headers when the status is in `afterStatusCodes`.
*/
export declare function calculateRetryDelay(retry: ResolvedRetry, attempt: number, response: Response | undefined): number;
/**
* Read the `x-should-retry` server hint. `'true'` forces retry; `'false'`
* forbids it. Anything else (including absence) returns null and lets
* default policy decide. OpenAI and Anthropic SDKs honor this.
*/
export declare function readXShouldRetry(response: Response): boolean | null;
export declare function shouldRetryNetworkError(retry: ResolvedRetry, options: MisinaResolvedOptions): boolean;
export declare function shouldRetryHttpError(retry: ResolvedRetry, options: MisinaResolvedOptions, response: Response): boolean;
export declare function delayMs(ms: number, signal?: AbortSignal): Promise<void>;