Discord.js -如何每15秒更改一次机器人状态？

const Discord = require('discord.js');
const client = new Discord.Client();

client.on('ready', () => {
    console.log(`Logged in as ${client.user.tag}`);
    
    // 初始状态
    client.user.setPresence({
        activity: { name: 'Initial status' },
        status: 'online'
    });
    
    // 每15秒更改一次状态
    setInterval(() => {
        const statusOptions = ['Status 1', 'Status 2', 'Status 3'];
        const randomIndex = Math.floor(Math.random() * statusOptions.length);
        const newStatus = statusOptions[randomIndex];
        
        client.user.setPresence({
            activity: { name: newStatus },
            status: 'online'
        });
    }, 15000);
});

client.login('your_bot_token');