app.Add("/", new(Struct)) 这种写法怎么理解

https://github.com/yarf-framework/yarf ``` package main import ( "github.com/yarf-framework/yarf" ) // Define a simple resource type Hello struct { yarf.Resource } // Implement the GET method func (h *Hello) Get(c *yarf.Context) error { c.Render("Hello world!") return nil } // Run app server on http://localhost:8080 func main() { y := yarf.New() y.Add("/", new(Hello)) y.Start(":8080") } ``` 通常添加路由是 Add(path,func) add("/",new(Struct)) 这个怎么理解