/*
 * Copyright (c) 2024-2025 Huawei Device Co., Ltd.
 * 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
 *
 * http://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.
 */

 interface PromiseLikeOne<T> {
     then<U>(onFulfilled: (value: T) => U throws): PromiseLikeOne<U>;
 }

 interface PromiseLikeTwo<T> {
     then<U, V>(onFulfilled: (value: T) => U throws, onRejected: (error: Object|null) => V throws): PromiseLikeTwo<U|V>;
 }

 function main(): void {
 }