import type { ThirdwebClient } from "../client/client.js";
import type { Ecosystem } from "../wallets/in-app/core/wallet/types.js";
import { LruMap } from "./caching/lru.js";
/**
 * @internal
 */
export declare function getClientFetch(client: ThirdwebClient, ecosystem?: Ecosystem): (url: string | Request, init?: Omit<RequestInit, "signal"> & {
    requestTimeoutMs?: number;
    useAuthToken?: boolean;
}) => Promise<Response>;
export declare const IS_THIRDWEB_URL_CACHE: LruMap<boolean>;
/**
 * @internal
 */
export declare function isThirdwebUrl(url: string): boolean;
/**
 * @internal
 */
export declare function getPlatformHeaders(): [string, string][];
//# sourceMappingURL=fetch.d.ts.map