Discord.js模块事件

Question

const Discord = require("discord.js")


module.exports.run = async (bot, member) => {

    member.guild.channels.get('427243207697367041').send(`Welcome to the Isles of Cyphernia ${member.user}!`);

    if(command === "testjoin") {
        member.guild.channels.get('427243207697367041').send("Welcome");    
    }

}

我该如何正确运行？这是一个模块，我正在尝试对其运行事件guildMemberAdd。 以下是运行我的index.js

中的模块的位

const joinCommands = ["testjoin"];

if (joinCommands.some(word => message.content.startsWith(config.prefix + word))) {
    try {
        let joinModule = require(`./modules/joinleave.js`);
        joinModule.run(bot, client, member);
    } catch(err) {
        console.error(err);
    }
}