Help! Modding a seemingly unobfuscated, non-encrypted cocos game

Upon inspecting the assets folder, I found the following javascript file:


It seems to be using SystemJS to load modules from "chunks:///_virtual". I'm interested in seeing the code for these TypeScript files, so I can modify the game. However, they do not exist in the APK as far as I can tell.

Does anyone know how I can access "chunks:///_virtual"?