How to use the @shopify/react-async.AssetTiming.Immediate function in @shopify/react-async

const pass = `Pass number ${index} ${
            finished ? ' (this was the final pass)' : ''
          }`;
          const rendering = `Rendering took ${renderDuration}ms`;
          const resolving = `Resolving promises took ${resolveDuration}ms`;

          logger.log(pass);
          logger.log(rendering);
          logger.log(resolving);
        },
        ...options,
      });
      applyToContext(ctx, networkManager);

      const immediateAsyncAssets = asyncAssetManager.used(
        AssetTiming.Immediate,
      );
      const [styles, scripts] = await Promise.all([
        assets.styles({name: 'main', asyncAssets: immediateAsyncAssets}),
        assets.scripts({name: 'main', asyncAssets: immediateAsyncAssets}),
      ]);

      const response = stream(
        
          {app}
        ,
      );

      ctx.set(Header.ContentType, 'text/html');
      ctx.body = response;
    } catch (error) {
      const errorMessage = `React server-side rendering error:\n${error.stack ||