code: func (oa OpenAPI) Install(c *restful.Container, mux *mux.PathRecorderMux) (*handler.OpenAPIService, *spec.Swagger) {
  	spec, err := builder.BuildOpenAPISpec(c.RegisteredWebServices(), oa.Config)
  	if err != nil {
  		klog.Fatalf("Failed to build open api spec for root: %v", err)
  	}
  	openAPIVersionedService, err := handler.RegisterOpenAPIVersionedService(spec, "/openapi/v2", mux)
  	if err != nil {
  		klog.Fatalf("Failed to register versioned open api spec for root: %v", err)
  	}
  	return openAPIVersionedService, spec
  }
docs: // Install adds the SwaggerUI webservice to the given mux.