With the upcoming events for flag checks of 0.0.4.0-beta1, this could be done by users of the API.

I am planning to add a abstraction/implementation for logging events, which can be toggled in the configuration.

0.0.4.1-beta1 introduces logging of flag checks and flag check results based on a new config.
This will be further refined in the future (either through the config or a dedicated region type/flag option).