if the bot joind a new server he will create a room a send message inside

client.on('guildCreate', async(guild) => {
    var channelName = "اسم الروم";
    var Thechannel = await guild.channels.cache.find(c => c.name === channelName);
    if (!Thechannel) await guild.channels.create(channelName, {
        type: "text"
    });
    Thechannel.send("الرساله")
});