2.4.0

TwitchIO 2.4 brings a huge set of changes! We've implemented new endpoints, squashed tons of bugs, and fixed up the eventsub ext.

Here's some bug fixes:

• Added self.registered_callbacks = {} to Client.from_client_credentials
• Allow empty or missing initial_channels to trigger Client.event_ready
• Corrected CustomRewardRedemption.fulfill endpoint typo and creation
• Corrected CustomRewardRedemption.refund endpoint typo and creation
• Changed Client.join_channels logic to handle bigger channel lists better
• Corrected Predictor slots and user keys, repr has also been added
• Updated IRC parser to not strip colons from beginning of messages
• Updated IRC parser to not remove multiple spaces when clumped together
• Fixed Client.start exiting immediately (YES, this means Client.start works properly now!)
• Chatters will now update correctly when someone leaves chat
• Fixed a crash when twitch sends a RECONNECT notice

We've added all the moderation endpoints, the new send_whisper endpoint (although this isn't very reliable, just like normal whispers).
Added Client.fetch_channels to allow fetching of more than one channel with a single API call.

Eventsub ext:

• Added "Gift Subscriptions" subscriptions for gifting other users Subs
• Added Re-subscription Message subscriptions for Resub messages
• Added EventSubClient.delete_all_active_subscriptions for convenience
• Created an Eventsub-specific CustomReward model

And more!

As always, check out the full changelist at https://twitchio.dev/en/latest/changelog.html