private static String[] getGroupContacts(String[] tk)
{
if (tk.Length < 3)
{
return(str2arr("Missing arguments. Usage: getGroupContacts <userID> <groupName>"));
}
return(sm.getContactsByGroup(int.Parse(tk[1]), tk[2]).Select(c => c.contactID.ToString() + "\t" + c.externalUserID + "\t" + c.nameContact).ToArray());
}