Enable/Disable Command

How could I create a command to say disable a text message?
So far I have:
Also, how could I add an alias to the command construction?

PHP:

public function __construct(){
        parent::__construct("chatmessage");
        $this->setDescription("Chat Message");
    }
  
    public function execute(CommandSender $sender, string $label, array $args){
        if($sender instanceof Player){
            $sender->sendMessage("You have [disable/enabled-here] command");


for aliases, would i do:

PHP:

$this->setDescription("desc");
$this->setAliases(["alias"]);


?

 

https://jenkins.pmmp.io/job/PocketM...ayer_1_1_player_command_preprocess_event.html

Keep track of the commands that are blocked in an array, and persist them inside a config.

P.S. I might be wrong, but shouldn't be there type hinted return value as boolean?

 

Could anyone show an example maybe?