Add GetChatMemberCount method to TgBotLib

src/TgBotLib/Enums/Methods.php

@@ -23,6 +23,7 @@
     use TgBotLib\Methods\ForwardMessages;
     use TgBotLib\Methods\GetChat;
     use TgBotLib\Methods\GetChatAdministrators;
+    use TgBotLib\Methods\GetChatMemberCount;
     use TgBotLib\Methods\GetFile;
     use TgBotLib\Methods\GetMe;
     use TgBotLib\Methods\GetUpdates;
@@ -120,6 +121,7 @@
         case LEAVE_CHAT = 'leaveChat';
         case GET_CHAT = 'getChat';
         case GET_CHAT_ADMINISTRATORS = 'getChatAdministrators';
+        case GET_CHAT_MEMBER_COUNT = 'getChatMemberCount';
 
         /**
          * Executes a command on the provided bot with the given parameters.
@@ -189,6 +191,7 @@
                 self::LEAVE_CHAT => LeaveChat::execute($bot, $parameters),
                 self::GET_CHAT => GetChat::execute($bot, $parameters),
                 self::GET_CHAT_ADMINISTRATORS => GetChatAdministrators::execute($bot, $parameters),
+                self::GET_CHAT_MEMBER_COUNT => GetChatMemberCount::execute($bot, $parameters),
             };
         }
     }

src/TgBotLib/Methods/GetChatMemberCount.php

@@ -0,0 +1,37 @@
+<?php
+
+    namespace TgBotLib\Methods;
+
+    use TgBotLib\Abstracts\Method;
+    use TgBotLib\Bot;
+    use TgBotLib\Enums\Methods;
+
+    class GetChatMemberCount extends Method
+    {
+
+        /**
+         * @inheritDoc
+         */
+        public static function execute(Bot $bot, array $parameters = []): int
+        {
+            return self::executeCurl(self::buildPost($bot, Methods::GET_CHAT_MEMBER_COUNT->value, $parameters));
+        }
+
+        /**
+         * @inheritDoc
+         */
+        public static function getRequiredParameters(): ?array
+        {
+            return [
+                'chat_id'
+            ];
+        }
+
+        /**
+         * @inheritDoc
+         */
+        public static function getOptionalParameters(): ?array
+        {
+            return null;
+        }
+    }