anchor.diff:  public class MyDeclarativeRoutes {
   
       // neither path nor regex is set - match a path derived from the method name
  -    @Route(methods = HttpMethod.GET)
  +    @Route(methods = Route.HttpMethod.GET)
       @APIResponse(responseCode="200", 
               description="Say hello", 
  -            content=@Content(mediaType="application/json", schema=@Schema(type=SchemaType.STRING)))<2>
  +            content=@Content(mediaType="application/json", schema=@Schema(type=SchemaType.STRING))) // <2>
       void hello(RoutingContext rc) {
           rc.response().end("hello");
       }
  
positive.code:     }
  }
  ----
  
  <1> Header information about your API.
  <2> Defining the response
  
  
negative.code: === Using Swagger UI
  
  Swagger UI is included by default when running in `dev` or `test` mode, and can optionally added to `prod` mode.
  See <<openapi-swaggerui.adoc#dev-mode,the Swagger UI>> Guide for more details.
  
  Navigate to link:http://localhost:8080/q/swagger-ui/[localhost:8080/q/swagger-ui/] and you will see the Swagger UI screen:
  
  