1if(command === "unban"){
2    if(!msg.member.hasPermission("BAN_MEMBERS")) {
3      return msg.channel.send(`**${msg.author.username}**, You do not have perms to unban someone`)
4    }
5    
6    if(!msg.guild.me.hasPermission("BAN_MEMBERS")) {
7      return msg.channel.send(`**${msg.author.username}**, I do not have perms to unban someone`)
8    }
9    
10    let userID = args[0]
11      msg.guild.fetchBans().then(bans=> {
12      if(bans.size == 0) return 
13      let bUser = bans.find(b => b.user.id == userID)
14      if(!bUser) return
15      msg.guild.members.unban(bUser.user)
16})
17    
18  ;}

1message.guild.members.unban(id)