import { Request, RequestInit } from "../http/request";
import { Response } from "../http/response";
import { Stringfiable } from "../types/stringifiable";
/** A programmatic representation of the error that occured while performing the fetch. */
export declare type ErrorCode = "encoding-mismatch" | "illegal-target" | "invalid-url" | "other" | "redirect-encountered" | "redirect-follow-not-allowed" | "redirect-loop-encountered";
/** Represents an error that occured while performing a fetch request. */
export declare class FetchError extends Error {
    /** The specific error code. */
    readonly code: ErrorCode;
}
/** A fetch response as passed to JS from Rust. */
export interface ResponseDescriptor {
    body: number;
    headers: Record<string, string[] | string>;
    status: number;
}
/**
 * Asynchronously fetches the given HTTP resource.
 *
 * @param resource The resource to fetch. This can either be a URL or an instance
 *  of the `Request` class.
 * @param init Request parameters overriding what is specified in the given
 * `Request`, if any.
 * @returns {Promise<Response>} Returns a promise that resolves to the HTTP response.
 */
export declare const fetch: (resource: string | Stringfiable | Request, init?: RequestInit | undefined) => Promise<Response>;