1/*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16/**
17 * A custom error class for a specific application error.
18 * @class
19 * @extends {Error}
20 */
21declare class MyAppError extends Error {
22  /**
23  * Constructor for MyAppError.
24  * @param {string} message - The error message.
25  * @param {string} errorCode - The error code.
26  */
27  constructor(message: string, errorCode: string);
28}
29
30/**
31 * A conditional type based on the type of a value.
32 * @typedef {T extends string ? "StringType" : "NonStringType"} StringTypeChecker<T>
33 */
34
35/**
36 * An assertion function to assert that a value is a truthy string.
37 * @param {any} value - The value to assert.
38 * @returns {asserts value is string} - The asserted truthy string.
39 */
40declare function assertTruthyString(value: any): asserts value is string;
41