export type HandlerParamsType<T extends AsyncFunction<T>> = (..._: Parameters<T>) => Promise<Parameters<T>>;
export type HandlerReturnType<T extends AsyncFunction<T>> = (_: Promise<ReturnType<T>>) => Promise<ReturnType<T>>;
export type PromiseProxyOptions<T extends AsyncFunction<T>> = {
    handlerParams?: HandlerParamsType<T>;
    handlerReturn?: HandlerReturnType<T>;
};
export declare function promiseProxy<T extends AsyncFunction<T>>(fn: T, { handlerParams, handlerReturn }?: PromiseProxyOptions<T>): T;