allow command only on specific server

Bot/bot.py

@@ -16,6 +16,8 @@ async def on_ready():
 
 @bot.command()
 async def register(ctx):
+    if not ctx.guild.id in allowedDiscordServer:
+        return
     name = ctx.author.name
     token = md5(str(ctx.author.id).encode()).hexdigest()
     user = bot.get_user(ctx.author.id)

Bot/config-example.py

@@ -1,6 +1,8 @@
 token = ""
 botAccount = True #if you use a normal useraccount, set this to false
 prefix = "!" #This you have to enter before every command (e.g. ?help)
+allowedDiscordServer = []
+
 
 sqlServer = ""
 sqlUser = ""