const ui = SwaggerUIBundle({
                    url: `url1` ,
                    dom_id: '#swagger-ui-1',
                    presets: [
                  SwaggerUIBundle.presets.apis,
                  // yay ES6 modules ↘
                  Array.isArray(SwaggerUIStandalonePreset) ? SwaggerUIStandalonePreset : SwaggerUIStandalonePreset.default
                    ],
                    plugins: [
                      SwaggerUIBundle.plugins.DownloadUrl
                    ],

                    layout: "StandaloneLayout"

                })