Add GetCustomEmojiStickers method

src/TgBotLib/Objects/GetCustomEmojiStickers.php

@@ -0,0 +1,45 @@
+<?php
+
+    namespace TgBotLib\Objects;
+
+    use TgBotLib\Abstracts\Method;
+    use TgBotLib\Bot;
+    use TgBotLib\Enums\Methods;
+    use TgBotLib\Objects\Stickers\Sticker;
+
+    class GetCustomEmojiStickers extends Method
+    {
+
+        /**
+         * @inheritDoc
+         */
+        public static function execute(Bot $bot, array $parameters = []): array
+        {
+            if(isset($parameters['custom_emoji_ids']) && is_array($parameters['custom_emoji_ids']))
+            {
+                $parameters['custom_emoji_ids'] = json_encode($parameters['custom_emoji_ids']);
+            }
+
+            return array_map(function($emoji) {
+                return Sticker::fromArray($emoji);
+            }, self::executeCurl(self::buildPost($bot, Methods::GET_CUSTOM_EMOJI_STICKERS->value, $parameters)));
+        }
+
+        /**
+         * @inheritDoc
+         */
+        public static function getRequiredParameters(): ?array
+        {
+            return [
+                'custom_emoji_ids'
+            ];
+        }
+
+        /**
+         * @inheritDoc
+         */
+        public static function getOptionalParameters(): ?array
+        {
+            return null;
+        }
+    }