Fatal error: Uncaught Error: Class "Anthropic\Core\Attributes\Required" not found in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Core\Attributes\Optional.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Core\Attributes\Optional.php on line 14