There should be argument types for each type of emoji, with an overarching "emoji" one allowing any type.

Got Facebook error: {"debug_info":{"retriable":false,"type":"ProcessingFailedError","message":"Request processing failed"}}
Error: Got Facebook error: {"debug_info":{"retriable":false,"type":"ProcessingFailedError","messa

What will happen if I attempt to send a message from ShardingManager to all the shards via ShardingManager#broadcast? Where would I listen to it in ShardClientUtil? I can't find it anywhere in the docs nor the code

Add a Reaction Collector module that behave like MessageCollector.
No particular requirement here, but can be discussed if needed.