Fatal error: Uncaught Error: Interface "Anthropic\ServiceContracts\Beta\Sessions\ThreadsContract" not found in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Services\Beta\Sessions\ThreadsService.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Services\Beta\Sessions\ThreadsService.php on line 20