Added sendMessage method

src/Models/MessageBody.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BushlanovDev\MaxMessengerBot\Models;
+
+/**
+ * Body of created message. Text + attachments.
+ */
+final readonly class MessageBody extends AbstractModel
+{
+    /**
+     * @param string $mid Unique identifier of message.
+     * @param int $seq Sequence identifier of message in chat.
+     * @param string|null $text Message text.
+     */
+    public function __construct(
+        public string $mid,
+        public int $seq,
+        public ?string $text,
+    ) {
+    }
+}