import { type RequestInit, type Response } from 'undici';
export declare function fetchRuntimeResource(params: {
    url: string;
    timeoutMs: number;
    proxy?: string;
    signal?: AbortSignal;
    init?: Omit<RequestInit, 'dispatcher' | 'signal'>;
}): Promise<Response>;
export declare function readRuntimeResponseText(response: Response, maxBytes: number): Promise<string>;