Add support for Paid Media Purchased event

src/TgBotLib/Events/PaidMediaPurchasedEvent.php

@@ -0,0 +1,28 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Enums\UpdateEventType;
+    use TgBotLib\Objects\Payments\PaidMediaPurchased;
+
+    abstract class PaidMediaPurchasedEvent extends UpdateEvent
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function getEventType(): UpdateEventType
+        {
+            return UpdateEventType::PAID_MEDIA_PURCHASED;
+        }
+
+        /**
+         * A user purchased paid media with a non-empty payload sent by the bot in a non-channel chat
+         *
+         * @return PaidMediaPurchased
+         */
+        protected function getPurchasedPaidMedia(): PaidMediaPurchased
+        {
+            return $this->update->getPurchasedPaidMedia();
+        }
+    }