v2.2.2a1

2.2.2a1 - 2021-12-26

Added

• Type based dependency injection now has ergonomic Union support.
  This means that for inject(type=Union[A, B, C])/inject(type=A | B | C) the dependency injector will try to find registered type injectors for A, B then C after trying to find a dependency injector for the literal Union.
• Type based dependency injection now has support for defaults through unions with None and Optional.
  This means that, for inject(type=Union[A, B, None])/inject(type=A | B | None) and inject(type=Optional[A]), if no registered implementations are found for the relevant types then None will be injected for the relevant argument.

Changed

• Message command parser arguments are now passed by keyword instead of positionally.
• Cooldown checks can now run without a present AbstractOwners implementation.

Fixed

• The cooldown manager now increments the internal counter after checking for cooldown rather than before.
  The old behaviour resulted in the last valid call to a bucket being ratelimited therefore essentially making the real-world limit limit-1.