Add support for handling channel post events

src/TgBotLib/Events/ChannelPostEvent.php

@@ -0,0 +1,29 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Bot;
+    use TgBotLib\Enums\UpdateEventType;
+    use TgBotLib\Objects\Message;
+
+    abstract class ChannelPostEvent extends UpdateEvent
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function getEventType(): UpdateEventType
+        {
+            return UpdateEventType::CHANNEL_POST;
+        }
+
+        /**
+         * Retrieves the current channel post.
+         *
+         * @return Message The channel post message.
+         */
+        protected function getChannelPost(): Message
+        {
+            return $this->update->getChannelPost();
+        }
+    }