fix PHPstan

src/event/AsyncEventDelegate.php

@@ -120,7 +120,7 @@ final class AsyncEventDelegate extends Event{
 	}
 
 	/**
-	 * @phpstan-return Promise<null>
+	 * @phpstan-return Promise<array<int, null>>
 	 */
 	private function waitForPromises() : Promise{
 		$array = $this->promises->toArray();

src/event/Event.php

@@ -56,6 +56,11 @@ abstract class Event{
 		});
 	}
 
+	/**
+	 * @template T
+	 * @phpstan-param \Closure() : T $closure
+	 * @phpstan-return T
+	 */
 	final protected function callDepth(\Closure $closure) : mixed{
 		if(self::$eventCallDepth >= self::MAX_EVENT_CALL_DEPTH){
 			//this exception will be caught by the parent event call if all else fails

src/event/RegisteredAsyncListener.php

@@ -28,8 +28,12 @@ use pocketmine\promise\Promise;
 use pocketmine\timings\TimingsHandler;
 
 class RegisteredAsyncListener extends RegisteredListener{
+	/** @phpstan-var Promise<null> $returnPromise */
 	private Promise $returnPromise;
 
+	/**
+	 * @phpstan-param \Closure(AsyncEvent&Event) : Promise<null> $handler
+	 */
 	public function __construct(
 		\Closure $handler,
 		int $priority,
@@ -51,6 +55,9 @@ class RegisteredAsyncListener extends RegisteredListener{
 		return !$this->noConcurrentCall;
 	}
 
+	/**
+	 * @phpstan-return Promise<null>
+	 */
 	public function callAsync(AsyncEvent&Event $event) : Promise{
 		$this->callEvent($event);
 		return $this->returnPromise;