Allow Graph API access to Archive Mailbox (aka In-place Archive)
Microsoft's official documentation for Graph API access to Archive mailboxes is non-existent, and what people cobble together on public sites like StackOverflow is highly contradictory:
(some say it's impossible, some possible, but suggested solutions don't actually work).
1. If it's possible to access Archive mailboxes (not just the regular archive folder in the normal mailbox!) via Graph API, document it properly.
2. If it's not possible, make it possible.