How should we structure private messages?

[thislooksfun]

In snoowrap everything is a top-level method of the main snoowrap class. In snoots I'm trying to namespace the interactions to make it more readable and maintainable, and to avoid cluttering up the docs too much. So far this has been easy: to interact with comments you use CommentControls exposed via client.comments. Same for posts and subreddits. However I'm having trouble structuring interactions private messages. My first thought was to use controls.inbox, which works nicely for getting (un)read messages and marking them (un)read, but it feels weird to have a function to send a private message inside the inbox controls.

The issue is that I need to support at least the following:

1. Getting private messages (PMs) from the inbox (both read and unread)
2. Marking PMs as read/unread
3. Deleting PMs
4. Muting/unmuting the author of a PM
5. Replying to a PM
6. Sending a new PM

The ideas I've had so far:

1. Put everything in client.inbox (type: InboxControls)
2. Put sending a new PM into client.outbox and everything else into client.inbox
3. Use a more generic client.privateMessages (type: PrivateMessageControls)

I'm personally leaning towards option 3 at the moment, but I'm not really happy with any of them. I'd love to hear your feedback.

[thislooksfun]

@OmgImAlexis You've put a lot of good thought into ways to improve snoots so far. What are your thoughts on this?