Before we go any further, I wanted to know if this is helpful and hear from both of you @baywet and @nikithauc. It's absolutely a WIP but I'd love to get early feedback! That will help with defining what is required to make technical decisions! Thanks!

This could be added in this document too

Tasks constructors such as PageIterator and LargeFileUpload tasks should accept both GraphServiceClient and GraphCoreClient

// both should work
const pageIterator = PageIterator(GraphServiceClient, options);
or
const pageIterator = PageIterator(GraphCoreClient, options);