observer_int

https://github.com/Diligent-Software-LLC/observer_int

An Observer library interface. Donations support continuous improvement and maintenance. The aim is a reliable, integrable, and endurable Observer library. Make a donation at the project's collective page: https://opencollective.com/observer. One-time and recurring donations are available at $1, $2, $4, $8, and $16. Greatly appreciated.