How to use web image loader for new 3Dcornerstonejs

Hi.
I used to use this lib - GitHub - cornerstonejs/cornerstoneWebImageLoader: Cornerstone Image Loader for Web Images (PNG, JPEG).
But it’s deprecated for 3Dcornerstonejs.
I tried this implementation - https://github.com/cornerstonejs/cornerstone3D/blob/19d7d73eca5190a6bd81429a5a1858c500946d61/packages/core/examples/webLoader/index.ts. But it is not clear how to use it. Should i copy all demo/helper functions? Do you have step by step guide to load png/jpg using 3Dcornerstonejs ?