$onlyForUsers
The command can only be executed by users with certain 'usernames'.
Usage
$onlyForUsers[usernames;...;errorMessage]
Parameters
usernames(Type: String || Flag: Emptiable): The names of the users that can execute this command. Separate the usernames using;.errorMessage(Type: String || Flag: Emptiable): The message that is returned when the command is used by a non-whitelisted user.