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This can be fixed on #584.

While the lib doesn't currently support voice, it would still be proper to handle voice state updates. The logic to do so should be here, and the docs for it are here.

The voice server update event should also probably be implemented. A

The command name (the trigger), description, and callback

This should help any potential confusion by throwing an exception when listening to an event excluded by the current intents, so that there’s no useless listeners registered.