Send message to level

Hello I was wondering how do I send a message to the level which $entity is in
thanks :3
?????????:

PHP:

            $level = $entity->getLevel()->getPlayersInLevel();
            $level->sendMessage($entity->getNameTag() . " §ewas killed by " . $damager->getNameTag());

This gives me error:

Code:

[18:11:02] [Server thread/CRITICAL]: "Could not pass event 'pocketmine\event\entity\EntityDamageByEntityEvent' to 'DeathView v0.0.2': Call to undefined method pocketmine\level\Level::getPlayersInLevel() on TheDiamondYT\DeathView\Loader
[18:11:02] [Server thread/CRITICAL]: Error: "Call to undefined method pocketmine\level\Level::getPlayersInLevel()" (EXCEPTION) in "/plugins/DeathView-master/src/TheDiamondYT/DeathView/Loader" at line 67

 

PHP:

foreach($entity->getLevel()->getEntities() as $ent){
    if($ent instanceof Player){
        $ent->sendMessage("write");
    }
}