feat: initial version

Signed-off-by: Sebastian Krupinski <root@LAPTOP-7DVOR6NC>

lib/Client/Mime/Part/LazyBody.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Gricob\IMAP\Mime\Part;
+
+use Gricob\IMAP\Client;
+
+class LazyBody extends Body
+{
+    public function __construct(
+        private Client $client,
+        private int $id,
+        private string $section,
+    ) {
+    }
+
+    public function __toString(): string
+    {
+        if (!isset($this->value)) {
+            $this->value = $this->client->fetchSectionBody($this->id, $this->section);
+        }
+
+        return $this->value;
+    }
+}