I am working on a typescript project with the 4.17 library. The template was downloaded from the github link below. I am having a hard time figuring out how to import a node library (I am trying to import pdf-merger-js after installing it with the npm install command). I know I can use a CDN link or have the js file referenced in my index.js but this library doesn't offer neither, and I really would like to learn how to use Node packages in this kind of project. Any help would be greatly appreciated. Thanks
https://github.com/Esri/jsapi-resources/tree/master/4.x/typescript