import { FastifyRequest } from 'fastify';
export type RetryOpts = {
    retries?: number;
    baseMs?: number;
    factor?: number;
    jitter?: boolean;
};
export declare const withTimeout: <T>(p: Promise<T>, ms: number, label?: string) => Promise<T>;
export declare const retry: <T>(fn: () => Promise<T>, opts?: RetryOpts) => Promise<T>;
export declare const pLimit: (concurrency: number) => <T>(fn: () => Promise<T>) => Promise<T>;
export type ResponseMeta = {
    next_cursor?: string;
    has_more?: boolean;
    [k: string]: unknown;
};
export declare const setResponseMeta: (req: FastifyRequest | Request, meta: ResponseMeta) => void;
export declare const getResponseMeta: (req: FastifyRequest | Request) => ResponseMeta | undefined;