Improve error message for handlers without any param

Author: danog

src/EventHandler.php

@@ -295,9 +295,13 @@ final public function internalStart(APIWrapper $MadelineProto, array $pluginsPre
                 } else {
                     $filter = $filter->newInstance();
                 }
+                $reflParams = $methodRefl->getParameters();
+                if (count($reflParams) === 0) {
+                    throw new AssertionError("Handler method $method must have at least one parameter!");
+                }
                 $filter = new FiltersAnd(
                     $filter,
-                    Filter::fromReflectionType($methodRefl->getParameters()[0]->getType())
+                    Filter::fromReflectionType($reflParams[0]->getType())
                 );
                 $filter = $filter->initialize($this);
                 if (!$this instanceof SimpleEventHandler) {

src/MTProtoTools/FilesAbstraction.php

@@ -1426,8 +1426,9 @@ public function uploadVoice(
      * Sends a media.
      *
      * @param class-string<Media> $type
+     * @param bool $uploadOnly Whether to only uploade the file
      *
-     * @return $uploadOnly ? Media : Message
+     * @return ($uploadOnly ? Media : Message)
      * @internal
      */
     public function sendMedia(