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 */
15declare class Utility {
16    constructor();
17    /**
18     * Concatenates two strings.
19     * @param {string} str1 - The first string.
20     * @param {string} str2 - The second string.
21     * @returns {string} The concatenated string.
22     */
23    concatenateStrings(str1: string, str2: string): string;
24    /**
25     * A method to check if a number is even.
26     * @param {number} num - The number to check.
27     * @returns {boolean} True if the number is even, false otherwise.
28     */
29    isEven(num: number): boolean;
30}
31declare interface UserProfile {
32    username: string;
33    age: number;
34}
35declare function greetUser(user: UserProfile): string;
36