Request: docs

Please, for the love of all things holy update the docs so that I don't have to go reading through .cc files or your gdrive implementation to figure out how this works!!!

Seriously, awesome work, thanks :) Docs would be nice though :smile_cat:

I think a great first step would be just the reply object.

Start by locating the reply object and reading the relevant .cc files, then check whether any existing documentation covers it. Done means the reply object's behavior and usage are documented well enough that readers do not need to inspect implementation files or the referenced GDrive material.

Written by the indexing model from the issue text.