Feedback Make Client request awaitable, or provide callbacks

Hi, I was looking for a way to update all or some packages from scripts. Looks like I'll be able to manage using a combinaison of Client.List and Client.Add (the documentation is not 100% clear on the behaviour for already installed packages btw), but I was surprised to see the lack of easy support for these request.

Client.List returns a ListRequest, but you can't await it, and the listRequest only has a bool for completion, meaning you have to manually wait for the request to be completed to do whatever you wanted with the result of the request.
Agreed it's not a huge issue, but it's still confusing and not really practical to use.