How to send custom event?

Say I want to send a custom event MyEvent to plugins. Kind of like OnPlayerJoin or anything like that. How would I do that?

 

Create new class with name of the event

PHP:

<?php
use pocketmine\event\plugin\PluginEvent;
use pocketmine\Player;

class EVENT extends PluginEvent implements Listener{
public static $handlerList = null;
public function __construct(YourMain $plugin, Player $player, Arena $arena) {
parent::__construct($plugin);
}
public function eventFunctions(){
//blablabla
}
}

 

Ok how could I then send it to toher plugins?

 

Do

PHP:

use FolderWhereIsEvent\eventclassname;

and then

PHP:

public function onMyCustomEvent(YourEventFileName $e){