import type { UniversalClientFn, UniversalHandlerFn } from "./universal.js";
/**
 * Create a universal client function, a minimal abstraction of an HTTP client,
 * using the given fetch() implementation.
 */
export declare function createFetchClient(fetchFn: typeof fetch): UniversalClientFn;
/**
 * FetchHandlerFn is a minimal abstraction of an HTTP handler with the fetch API
 * Request and Response types.
 */
type FetchHandlerFn = (req: Request) => Promise<Response>;
interface FetchHandlerOptions {
    httpVersion?: string;
}
/**
 * Convert a universal handler function to a fetch handler.
 */
export declare function createFetchHandler(uHandler: UniversalHandlerFn, options?: FetchHandlerOptions): FetchHandlerFn;
export {};