Add support for handling poll answer updates

src/TgBotLib/Classes/Utilities.php

@@ -86,6 +86,11 @@
                 return UpdateEventType::MY_CHAT_MEMBER_UPDATED;
             }
 
+            if($update->getPollAnswer() !== null)
+            {
+                return UpdateEventType::POLL_ANSWER;
+            }
+
             return UpdateEventType::UPDATE_EVENT;
         }
     }

src/TgBotLib/Enums/UpdateEventType.php

@@ -7,6 +7,7 @@
     use TgBotLib\Events\ChatJoinRequestEvent;
     use TgBotLib\Events\ChatMemberUpdatedEvent;
     use TgBotLib\Events\MyChatMemberUpdatedEvent;
+    use TgBotLib\Events\PollAnswerEvent;
     use TgBotLib\Events\RemovedChatBoostEvent;
 
     enum UpdateEventType : string
@@ -17,4 +18,5 @@
         case CHAT_JOIN_REQUEST_EVENT = ChatJoinRequestEvent::class;
         case CHAT_MEMBER_UPDATED = ChatMemberUpdatedEvent::class;
         case MY_CHAT_MEMBER_UPDATED = MyChatMemberUpdatedEvent::class;
+        case POLL_ANSWER = PollAnswerEvent::class;
     }

src/TgBotLib/Events/PollAnswerEvent.php

@@ -0,0 +1,30 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Bot;
+    use TgBotLib\Enums\UpdateEventType;
+    use TgBotLib\Objects\PollAnswer;
+
+    abstract class PollAnswerEvent extends UpdateEvent
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function getEventType(): UpdateEventType
+        {
+            return UpdateEventType::POLL_ANSWER;
+        }
+
+        /**
+         * A user changed their answer in a non-anonymous poll.
+         * Bots receive new votes only in polls that were sent by the bot itself.
+         *
+         * @return PollAnswer The poll answer associated with the current update.
+         */
+        protected function getPollAnswer(): PollAnswer
+        {
+            return $this->update->getPollAnswer();
+        }
+    }