/*
 * Copyright (c) 2023 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.
 */


class is { }

namespace is {
    var is = 1;
    var asserts = 2;
    var async = 3;
}

class asserts {
    is = 1;
    asserts = 2;
    async = 3;
}

function async() { }

function assertsUse<T>(asserts: T): asserts asserts is NonNullable<T> { }