/**
 * Copyright 2020 Angus.Fenying <fenying@litert.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
export declare type IWaitResult<T, E> = {
    success: true;
    result: T;
} | {
    success: false;
    result: E;
};
/**
 * Sleep for determined time and then wake up.
 *
 * NOTE: This method SHOULD never fail because timer wouldn't be cancelled.
 *
 * @param ms    Milliseconds to wait
 * @param args  The result of promise resolved.
 */
export declare function sleep<T extends any[]>(ms: number, ...args: T): Promise<T>;
/**
 * Call the function after 0ms, which means in next tick.
 */
export declare const nextTick: <T extends any[]>(fn: (...args: T) => void, ...args: T) => void;
/**
 * Wait for multi-tasks, and get all results, whatever succeed or failed.
 *
 * @param tasks The all tasks' promises.
 */
export declare function multiTasks<T, E>(tasks: Array<Promise<T>>): Promise<Array<IWaitResult<T, E>>>;
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