Enable to suppress Suspicious dumping error

src/DI/Attributes/IgnoreDumping.php

@@ -0,0 +1,17 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\DI\Attributes;
+
+use Attribute;
+
+#[Attribute(Attribute::TARGET_CLASS)]
+class IgnoreDumping
+{
+}

src/DI/PhpGenerator.php

@@ -12,6 +12,7 @@
 use Nette;
 use Nette\DI\Definitions\Reference;
 use Nette\DI\Definitions\Statement;
+use Nette\DI\Attributes\IgnoreDumping;
 use Nette\PhpGenerator as Php;
 use function array_walk_recursive, is_array, is_object, is_string, ksort, sprintf, str_contains, str_ends_with, str_starts_with, substr;
 
@@ -186,6 +187,7 @@ public function convertArguments(array $args): array
 			} elseif (
 				is_object($val)
 				&& !$val instanceof Php\Literal && !$val instanceof \DateTimeInterface
+				&& !(new \ReflectionObject($val))->getAttributes(IgnoreDumping::class)
 				&& (new \ReflectionObject($val))->getProperties(\ReflectionProperty::IS_PRIVATE | \ReflectionProperty::IS_PROTECTED)
 			) {
 				trigger_error(sprintf('Nette DI: suspicious dumping of objects %s when generating the container', $val::class));