Type hints fixes.

What's Changed

• fix: Mypy not recognising type annotations by @khvn26 in #61
• change labels() method return type by @pradishb in #58

I shall always be ashamed of making this release on github 5 months after the actual release was done 🐢

What's Changed

• add support for python 3.13

What's Changed

• improved new redis sample generation by @Llandy3d in #51
• make EXPIRE_KEY_TIME configurable by @Llandy3d in #53
• Prom patching by @Llandy3d in #54

• New improved implementation of _generate_samples for MultiProcessRedisBackend:

  • Improved performance for generating metrics
  • Fixed a bug where on multiprocess on some scrapes a metric wouldn't be picked up due to missing local collector child
  • Now on labeled metrics, the labels/value combination will be initialized to 0 if it doesn't exists (before only the key would be initialized)

• Redis keys expire time can now be configured via the expire_key_time config passed when loading the backend

• Experimental prometheus_client patching in-place to quickly test the library on existing codebases

• DEPRECATED: key_prefix for redis configuration. Prefer a side-car container or a separate redis/redis db per service.

What's Changed

• python 3.12 support

What's Changed

• fix generate_metrics to handle custom collectors by @Llandy3d in #48

What's Changed

• support for kwargs in labels() by @Llandy3d in #46

  kwargs (keyword arguments) support for the labels() method.

  metric = Counter("counter", "desc", required_labels=["method"])
  
  # dict approach
  metric.labels({"method": "POST"})
  
  # kwargs approach
  metric.labels(method="POST")

What's Changed

• asgi middleware for fastapi by @Llandy3d in #41

All the core functionality of the library it's stable and this deserves a version bump 🥳

What's Changed

• add Summary metric type by @Llandy3d in #40

What's Changed

• add support for python 3.8 & 3.9 by @Llandy3d in #39

What's Changed

• decorator support for async functions by @Llandy3d in #37