# gdtest_skill_combo > A full-featured package combining skills with user guides and hero sections ## Docs ### API Reference #### Classes > Core classes - [Router](https://example.com/gdtest-skill-combo/reference/Router.html): A synchronous HTTP router - [AsyncRouter](https://example.com/gdtest-skill-combo/reference/AsyncRouter.html): An asynchronous HTTP router - [Request](https://example.com/gdtest-skill-combo/reference/Request.html): An incoming HTTP request - [Response](https://example.com/gdtest-skill-combo/reference/Response.html): An HTTP response - [Middleware](https://example.com/gdtest-skill-combo/reference/Middleware.html): Base class for middleware #### Functions > Public functions - [route](https://example.com/gdtest-skill-combo/reference/route.html): Decorator to register a route handler