diff --git a/src/TgBotLib/Abstracts/EventType.php b/src/TgBotLib/Abstracts/EventType.php
index bc3037b..c8c4a39 100644
--- a/src/TgBotLib/Abstracts/EventType.php
+++ b/src/TgBotLib/Abstracts/EventType.php
@@ -5,36 +5,22 @@
     abstract class EventType
     {
         const GenericUpdate = 'generic_update';
-
         const Message = 'message';
-
         const EditedMessage = 'edited_message';
-
         const GenericCommandMessage = 'generic_command_message';
-
         const ChatMemberJoined = 'chat_member_joined';
-
         const ChatMemberLeft = 'chat_member_left';
-
         const ChatMemberKicked = 'chat_member_kicked';
-
         const ChatMemberBanned = 'chat_member_banned';
-
         const ChatMemberUnbanned = 'chat_member_unbanned';
-
         const ChatMemberPromoted = 'chat_member_promoted';
-
         const ChatMemberDemoted = 'chat_member_demoted';
-
         const ChatMemberRestricted = 'chat_member_restricted';
-
         const ChatMemberUnrestricted = 'chat_member_unrestricted';
-
-        const ChatMemberChanged = 'chat_member_changed';
         const ChatTitleChanged = 'chat_title_changed';
         const ChatPhotoChanged = 'chat_photo_changed';
+        Const CallbackQuery = 'callback_query';
 
-        const ChatDescriptionChanged = 'chat_description_changed';
 
 
     }
\ No newline at end of file
diff --git a/src/TgBotLib/Bot.php b/src/TgBotLib/Bot.php
index ad94486..2ca9859 100644
--- a/src/TgBotLib/Bot.php
+++ b/src/TgBotLib/Bot.php
@@ -6,6 +6,7 @@
 
     use CURLFile;
     use CurlHandle;
+    use Exception;
     use InvalidArgumentException;
     use TgBotLib\Abstracts\ChatMemberStatus;
     use TgBotLib\Abstracts\EventType;
@@ -129,6 +130,7 @@
          * Sets whether the library will use SSL to send requests
          *
          * @param bool $ssl
+         * @noinspection PhpUnused
          */
         public function setSsl(bool $ssl): void
         {
@@ -405,6 +407,13 @@
                             $handler->handle($this, $update);
                         }
                         break;
+
+                    case EventType::CallbackQuery:
+                        if(($update->getCallbackQuery() ?? null) !== null)
+                        {
+                            $handler->handle($this, $update);
+                        }
+                        break;
                 }
             }
 
@@ -2165,4 +2174,19 @@
             ]);
             return true;
         }
+
+        /**
+         * Public Destructor
+         */
+        public function __destruct()
+        {
+            try
+            {
+                $this->close();
+            }
+            catch(Exception $e)
+            {
+                unset($e);
+            }
+        }
     }
\ No newline at end of file
diff --git a/tests/commands/StartCommand.php b/tests/commands/StartCommand.php
index c8193e6..e3ce303 100644
--- a/tests/commands/StartCommand.php
+++ b/tests/commands/StartCommand.php
@@ -18,6 +18,8 @@
         public function handle(Bot $bot, Update $update): void
         {
             // reply to the incoming message
-            $bot->sendMessage($update->getMessage()->getChat()->getId(), 'Hello, ' . $update->getMessage()->getFrom()->getFirstName());
+            $bot->sendMessage(
+                $update->getMessage()->getChat()->getId(), 'Hello, ' . $update->getMessage()->getFrom()->getFirstName()
+            );
         }
     }
\ No newline at end of file
diff --git a/tests/get_updates.php b/tests/get_updates.php
index 600b501..19db89c 100644
--- a/tests/get_updates.php
+++ b/tests/get_updates.php
@@ -1,13 +1,14 @@
 <?php
 
-    use commands\StartCommand;
-
     require 'ncc';
     import('net.nosial.tgbotlib');
 
     require 'commands/StartCommand.php';
 
-    $bot = new TgBotLib\Bot('YOUR_BOT_TOKEN');
-    $bot->setCommandHandler('start', new StartCommand());
+    $bot = new TgBotLib\Bot('865804194:AAHTo9aIFP5X47dMYLJ6eoldHJnM6sc3LBc');
+    $bot->setCommandHandler('start', new \commands\StartCommand());
 
-    $bot->handleGetUpdates(true);
\ No newline at end of file
+    print_r(json_encode($bot->getMe()->toArray()) . PHP_EOL);
+    $bot->sendMessage(570787098, 'Hello, world!');
+    $bot->handleGetUpdates();
+    unset($bot);
\ No newline at end of file