/**
 * Copyright (c) 2017-present A. Matías Quezada <amatiasq@gmail.com>
 */
/**
 * Decorates a function to not be executed until all promise parameters are fulfilled.
 *
 * @example
 * const sum = (first: number, second: number) => first + second;
 * const asyncSum = asyncParams(sum);
 * asyncSum(Promise.resolve(1), 2).then(result => console.log(result));
 *
 * @param {Function} fn Function to be decorated.
 * @param {Function} Decorated function.
 */
export default function asyncParams<T, U>(fn: (...args: Value<T>[]) => U): (...args: Value<T>[]) => Promise<U>;
export declare type Value<T> = Promise<T> | T;